Download Digestive System - Magoffin County Schools

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Document related concepts
no text concepts found
Transcript
Human Body Unit
Part
VI/XIII
The Digestive
System
Copyright © 2010 Ryan P. Murphy

New Area of Focus: The Digestive System
Copyright © 2010 Ryan P. Murphy
• What did you have for breakfast today?
Copyright © 2010 Ryan P. Murphy
• Humans are chemical factories, we need
raw materials to produce new cells, repair
damaged parts, and produce energy.
Copyright © 2010 Ryan P. Murphy
• High quality energy in
Copyright © 2010 Ryan P. Murphy
• High quality energy in – heat released –
Copyright © 2010 Ryan P. Murphy
• Activity! Starting off the digestion process.
Copyright © 2010 Ryan P. Murphy
• Activity! Starting off the digestion process.
• Students with food allergies should not
participate.
Copyright © 2010 Ryan P. Murphy
• Activity! Starting off the digestion process.
• Students with food allergies should not
participate.
– Teacher to pass everyone a piece of bread.
Copyright © 2010 Ryan P. Murphy
• Activity! Starting off the digestion process.
• Students with food allergies should not
participate.
– Teacher to pass everyone a piece of bread.
– Students place bread in mouth (Record taste
immediately in journal)
Copyright © 2010 Ryan P. Murphy
• Activity! Starting off the digestion process.
• Students with food allergies should not
participate.
– Teacher to pass everyone a piece of bread.
– Students place bread in mouth (Record taste
immediately in journal)
– Students allow salvia to moisten bread in
mouth and then begin chewing. (Record taste
in journal after chewing)
Copyright © 2010 Ryan P. Murphy
• What happened?
• How did the taste change? Why?
Copyright © 2010 Ryan P. Murphy
• Answer: Bread is a complex carbohydrate
(starch).
Copyright © 2010 Ryan P. Murphy
• Answer: Bread is a complex carbohydrate
(starch). The ptyalin in your saliva along
with your chewing broke the large sugar
molecules into smaller (more sweet) sugar
molecules.
Copyright © 2010 Ryan P. Murphy
• Answer: Bread is a complex carbohydrate
(starch). The ptyalin in your saliva along
with your chewing broke the large sugar
molecules into smaller (more sweet) sugar
molecules.
Copyright © 2010 Ryan P. Murphy
• Answer: Bread is a complex carbohydrate
(starch). The ptyalin in your saliva along
with your chewing broke the large sugar
molecules into smaller (more sweet) sugar
molecules.
Glucose
Copyright © 2010 Ryan P. Murphy
• Taste buds: The sensory organs that are
found on your tongue.
Copyright © 2010 Ryan P. Murphy
• Taste buds: The sensory organs that are
found on your tongue.
Taste buds are part of the nervous
system but will be covered quickly
now. They will be addressed again
later.
Copyright © 2010 Ryan P. Murphy
• Besides the chemical enzymes, what else
did you use to break down the piece of
bread?
Copyright © 2010 Ryan P. Murphy

Mechanical Digestion: Physically breaking
down the food.
Copyright © 2010 Ryan P. Murphy

Mechanical Digestion: Physically breaking
down the food.
Copyright © 2010 Ryan P. Murphy

Mechanical Digestion: Physically breaking
down the food.
orm
Copyright © 2010 Ryan P. Murphy

Mechanical Digestion: Physically breaking
down the food.
orm
ollows
Copyright © 2010 Ryan P. Murphy

Mechanical Digestion: Physically breaking
down the food.
orm
ollows
unction
Copyright © 2010 Ryan P. Murphy

Mechanical Digestion: Physically breaking
down the food.
orm
ollows
unction
Copyright © 2010 Ryan P. Murphy
• The Digestive System uses a combination
of mechanical and chemical means to
break down food.
Copyright © 2010 Ryan P. Murphy
Copyright © 2010 Ryan P. Murphy
Learn more about mechanical and chemical digestion at…
http://www.smartlivingnetwork.com/digestive/b/mechanical-andchemical-digestion/
• Chewing your food is an important part of
digestion.
Copyright © 2010 Ryan P. Murphy
• Chewing your food is an important part of
digestion.
– Your stomach has no teeth.
– Chewing allows the chemical digestion
process to act on your food more easily.
– Relax and enjoy, take your time, chew often.
Copyright © 2010 Ryan P. Murphy
• Chewing your food is an important part of
digestion.
– Your stomach has no teeth.
– Chewing allows the chemical digestion
process to act on your food more easily.
– Relax and enjoy, take your time, chew often.
Copyright © 2010 Ryan P. Murphy
• Chewing your food is an important part of
digestion.
– Your stomach has no teeth
– Chewing allows the chemical digestion
process to act on your food more easily.
– Relax and enjoy, take your time, chew often.
Copyright © 2010 Ryan P. Murphy

Pharynx: Part of the throat situated
immediately behind the mouth and nasal
cavity
Copyright © 2010 Ryan P. Murphy
• What is this?
• When you swallow (reflex), your muscles
(tongue) move food into your throat and
cause your epiglottis to close.
Copyright © 2010 Ryan P. Murphy
• When you swallow (reflex), your muscles
(tongue) move food into your throat and
cause your epiglottis to close.
Copyright © 2010 Ryan P. Murphy
• When you swallow (reflex), your muscles
(tongue) move food into your throat and
cause your epiglottis to close.
Copyright © 2010 Ryan P. Murphy
• When you swallow (reflex), your muscles
(tongue) move food into your throat and
cause your epiglottis to close.
Copyright © 2010 Ryan P. Murphy
• When you swallow (reflex), your muscles
(tongue) move food into your throat and
cause your epiglottis to close.
Copyright © 2010 Ryan P. Murphy
• When you swallow (reflex), your muscles
(tongue) move food into your throat and
cause your epiglottis to close.
Copyright © 2010 Ryan P. Murphy
• When you swallow (reflex), your muscles
(tongue) move food into your throat and
cause your epiglottis to close.
The three phases of swallowing… Learn more at…
http://stroke.about.com/od/caregiverresources/qt/swallowphases.htm
Copyright © 2010 Ryan P. Murphy

Esophagus: The tube that carries food from
the mouth to the stomach. (Smooth Muscle)
Copyright © 2010 Ryan P. Murphy
• The esophagus is covered with a slimy
mucous that aids movement.
– (12 seconds to travel to stomach)
Copyright © 2010 Ryan P. Murphy
• The esophagus is covered with a slimy
mucous that aids movement.
– (12 seconds to travel to stomach)
Copyright © 2010 Ryan P. Murphy

Peristalsis: Waves of rhythmic muscular
contractions that push / move food.
Copyright © 2010 Ryan P. Murphy

Peristalsis: Waves of rhythmic muscular
contractions that push / move food.
Copyright © 2010 Ryan P. Murphy
• Optional Activity! Teacher or volunteer
student swallows some food upside down.
– Peristalsis can move food against gravity.
– Please make item something that won’t cause
a choking hazard. (chew prior)
– Teacher or volunteer can lay over edge of
table or handstand.
• Video! Peristalsis in the antrum (Lower
part of stomach).
– http://www.youtube.com/watch?v=o18UycWR
saA
Copyright © 2010 Ryan P. Murphy
• Activity! Going Golfing
– Class needs to move 5 golf ball through the
digestive track using peristalsis. Eyes Closed?
– Students form line one across from another.
– Wet hands and use dish soap for mucous.
- You can only squeeze hands.
Copyright © 2010 Ryan P. Murphy

Stomach: A saclike part of the alimentary
canal in which food is stored.
Copyright © 2010 Ryan P. Murphy

Stomach: A saclike part of the alimentary
canal in which food is stored.
Copyright © 2010 Ryan P. Murphy

Stomach: A saclike part of the alimentary
canal in which food is stored.
Copyright © 2010 Ryan P. Murphy
• Cells in the stomach wall release a
chemical gastric juice (Pepsin – enzyme)
and thick slippery mucous to protect
stomach.
Copyright © 2010 Ryan P. Murphy
• Cells in the stomach wall release a
chemical gastric juice (Pepsin – enzyme)
and thick slippery mucous to protect
stomach.
– Pepsin contains hydrochloric acid.
Copyright © 2010 Ryan P. Murphy
• The stomach churns the food (mechanical)
while the gastric juices break down the
food chemically. (Smooth Muscle)
Copyright © 2010 Ryan P. Murphy
• Heartburn / upset stomach is that acid
making its way up the esophagus.
Copyright © 2010 Ryan P. Murphy
• Heartburn / upset stomach is that acid
making its way up the esophagus.
– Antacid tablets help to neutralize the acid with
a base.
Copyright © 2010 Ryan P. Murphy
• Heartburn / upset stomach is that acid
making its way up the esophagus.
– Antacid tablets help to neutralize the acid with
a base.
Copyright © 2010 Ryan P. Murphy
• Heartburn / upset stomach is that acid
making its way up the esophagus.
– Antacid tablets help to neutralize the acid with
a base.
Acid
Copyright © 2010 Ryan P. Murphy
• Heartburn / upset stomach is that acid
making its way up the esophagus.
– Antacid tablets help to neutralize the acid with
a base.
Acid
Base
Copyright © 2010 Ryan P. Murphy
• Heartburn / upset stomach is that acid
making its way up the esophagus.
– Antacid tablets help to neutralize the acid with
a base.
Acid
Base
Gastric Juices
Copyright © 2010 Ryan P. Murphy
• Activity! Step by step drawing of the
Digestive System.
“Can we label some
parts already?”
• Activity! The GI Tract is about 12 meters
long (40 feet in male)
Copyright © 2010 Ryan P. Murphy
• Activity! The GI Tract is about 12 meters
long (40 feet in male)
– Volunteer to wear baggy sweatshirt and
needs to stuff 10 meters of garden hose, and
two meters of wacky noodle into the
sweatshirt from just below chest to just above
waist.
Copyright © 2010 Ryan P. Murphy
• Note how the GI Tract coils around so that
its incredible length can fit into an area so
small.
Copyright © 2010 Ryan P. Murphy
• Note how the GI Tract coils around so that
its incredible length can fit into an area so
small.
Copyright © 2010 Ryan P. Murphy
• Note how the GI Tract coils around so that
its incredible length can fit into an area so
small.
Copyright © 2010 Ryan P. Murphy
• Note how the GI Tract coils around so that
its incredible length can fit into an area so
small.
orm
Copyright © 2010 Ryan P. Murphy
• Note how the GI Tract coils around so that
its incredible length can fit into an area so
small.
orm
Copyright © 2010 Ryan P. Murphy
• Note how the GI Tract coils around so that
its incredible length can fit into an area so
small.
orm
ollows
Copyright © 2010 Ryan P. Murphy
• Note how the GI Tract coils around so that
its incredible length can fit into an area so
small.
orm
ollows
Copyright © 2010 Ryan P. Murphy
• Note how the GI Tract coils around so that
its incredible length can fit into an area so
small.
orm
ollows
unction
Copyright © 2010 Ryan P. Murphy
• Note how the GI Tract coils around so that
its incredible length can fit into an area so
small.
orm
ollows
unction
Copyright © 2010 Ryan P. Murphy

Duodenum: The beginning of the small
intestine.
Copyright © 2010 Ryan P. Murphy
• Duodenum: The beginning of the small
intestine.
– Distributes bile
Copyright © 2010 Ryan P. Murphy
• Duodenum: The beginning of the small
intestine.
– Distributes bile (produced by the liver and
stored in the gall bladder),
Copyright © 2010 Ryan P. Murphy
• Duodenum: The beginning of the small
intestine.
– Distributes bile (produced by the liver and
stored in the gall bladder), pancreatic acids
(pancreas),
Copyright © 2010 Ryan P. Murphy
• Duodenum: The beginning of the small
intestine.
– Distributes bile (produced by the liver and
stored in the gall bladder), pancreatic acids
(pancreas), and other secretions to chemically
breakdown food.
Copyright © 2010 Ryan P. Murphy
• Duodenum: The beginning of the small
intestine.
– Distributes bile (produced by the liver and
stored in the gall bladder), pancreatic acids
(pancreas), and other secretions to chemically
breakdown food.
Copyright © 2010 Ryan P. Murphy
• Duodenum: The beginning of the small
intestine.
– Distributes bile (produced by the liver and
stored in the gall bladder), pancreatic acids
(pancreas), and other secretions to chemically
breakdown food.
Why not add all
of the digestive
enzymes here?
Copyright © 2010 Ryan P. Murphy
• Duodenum: The beginning of the small
intestine.
– If the chemical enzymes were added at the
end of the GI tract the food would not be
broken down and absorption of nutrients
would be difficult.
Why not add all
of the digestive
enzymes here?
Copyright © 2010 Ryan P. Murphy

Small Intestine: Major organ for food
absorption.
Copyright © 2010 Ryan P. Murphy

Small Intestine: Major organ for food
absorption.
Copyright © 2010 Ryan P. Murphy

Small Intestine: Major organ for food
absorption.
Very Long
15 ft / 4.5 m
Copyright © 2010 Ryan P. Murphy

Small Intestine: Major organ for food
absorption.
Very Long
15 ft / 4.5 m
Copyright © 2010 Ryan P. Murphy

Small Intestine: Major organ for food
absorption.
orm
Very Long
15 ft / 4.5 m
Copyright © 2010 Ryan P. Murphy

Small Intestine: Major organ for food
absorption.
orm
Very Long
ollows
15 ft / 4.5 m
Copyright © 2010 Ryan P. Murphy

Small Intestine: Major organ for food
absorption.
orm
Very Long
ollows
15 ft / 4.5 m
unction
Copyright © 2010 Ryan P. Murphy

Small Intestine: Major organ for food
absorption.
orm
Very Long
ollows
15 ft / 4.5 m
unction
Copyright © 2010 Ryan P. Murphy

Small Intestine: Major organ for food
absorption.
orm
Very Long
ollows
15 ft / 4.5 m
unction
Copyright © 2010 Ryan P. Murphy

Pancreas: Organ that aids in digestion by
producing pancreatic juices that enter
small intestine.
Copyright © 2010 Ryan P. Murphy
• Pancreas: Organ that aids in digestion by
producing pancreatic juices that enter
small intestine.
– Also aids in producing hormones.
Copyright © 2010 Ryan P. Murphy
• Pancreas: Organ that aids in digestion by
producing pancreatic juices that enter
small intestine.
– Also aids in producing hormones.
Copyright © 2010 Ryan P. Murphy
• The Liver and Gall Bladder are organs that
aid in the digestion process.
Copyright © 2010 Ryan P. Murphy
• The Liver and Gall Bladder are organs that
aid in the digestion process.
Copyright © 2010 Ryan P. Murphy
• The Liver and Gall Bladder are organs that
aid in the digestion process.
Copyright © 2010 Ryan P. Murphy

Liver: Large, heavy, vital organ that
produces bile that breaks down fats.
 Also
detoxifies chemicals
 Synthesizes proteins
 Stores Glycogen (energy)
 Decomposes red blood cells
 Hormone production
Copyright © 2010 Ryan P. Murphy
• Liver: Large, heavy, vital organ that
produces bile that breaks down fats.
– Also detoxifies chemicals
– Synthesizes proteins
– Stores Glycogen (energy)
– Decomposes red blood cells
– Hormone production
Copyright © 2010 Ryan P. Murphy
• Liver: Large, heavy, vital organ that
produces bile that breaks down fats.
– Also detoxifies chemicals
– Synthesizes proteins
– Stores Glycogen (energy)
– Decomposes red blood cells
– Hormone production
Copyright © 2010 Ryan P. Murphy
• Liver: Large, heavy, vital organ that
produces bile that breaks down fats.
– Also detoxifies chemicals
– Synthesizes proteins
– Stores Glycogen (energy)
– Decomposes red blood cells
– Hormone production
Copyright © 2010 Ryan P. Murphy
• Liver: Large, heavy, vital organ that
produces bile that breaks down fats.
– Also detoxifies chemicals
– Synthesizes proteins
– Stores Glycogen (energy)
– Decomposes red blood cells
– Hormone production
Copyright © 2010 Ryan P. Murphy
• Liver: Large, heavy, vital organ that
produces bile that breaks down fats.
– Also detoxifies chemicals
– Synthesizes proteins
– Stores Glycogen (energy)
– Decomposes red blood cells
– Hormone production
Copyright © 2010 Ryan P. Murphy
• Liver: Large, heavy, vital organ that
produces bile that breaks down fats.
– Also detoxifies chemicals
– Synthesizes proteins
– Stores Glycogen (energy)
– Decomposes red blood cells
– Hormone production
Copyright © 2010 Ryan P. Murphy
• Liver: Large, heavy, vital organ that
produces bile that breaks down fats.
– Also detoxifies chemicals
– Synthesizes proteins
– Stores Glycogen (energy)
– Decomposes red blood cells
– Hormone production
It’s difficult to live long term without a liver
because it performs so many functions
Copyright © 2010 Ryan P. Murphy

Gall Bladder: A small pear-shaped organ
that stores and concentrates bile from the
liver.
Copyright © 2010 Ryan P. Murphy

Gall Bladder: A small pear-shaped organ
that stores and concentrates bile from the
liver.
Copyright © 2010 Ryan P. Murphy

Gall Bladder: A small pear-shaped organ
that stores and concentrates bile from the
liver.
Copyright © 2010 Ryan P. Murphy
Liver
Intestine
Gall Bladder
Liver
Intestine
Gall Bladder
Liver
Intestine
Gall Bladder
Liver
Intestine
Gall Bladder
Liver
Intestine
Gall Bladder
Liver
Intestine
Gall Bladder
Liver
Intestine
Gall Bladder
• How long does it normally take for the
nutrients in your food to be absorbed in
the intestine?
Copyright © 2010 Ryan P. Murphy
• How long does it normally take for the
nutrients in your food to be absorbed in
the intestine?
– A.) 5 days
Copyright © 2010 Ryan P. Murphy
• How long does it normally take for the
nutrients in your food to be absorbed in
the intestine?
– A.) 5 days
– B.) 5 hours
Copyright © 2010 Ryan P. Murphy
• How long does it normally take for the
nutrients in your food to be absorbed in
the intestine?
– A.) 5 days
– B.) 5 hours
– C.) 5 minutes
Copyright © 2010 Ryan P. Murphy
• How long does it normally take for the
nutrients in your food to be absorbed in
the intestine?
– A.) 5 days
– B.) 5 hours
– C.) 5 minutes
– D.) 5 seconds
Copyright © 2010 Ryan P. Murphy
• How long does it normally take for the
nutrients in your food to be absorbed in
the intestine?
– A.) 5 days
– B.) 5 hours
– C.) 5 minutes
– D.) 5 seconds
– E.) Nobody Knows
Copyright © 2010 Ryan P. Murphy
• How long does it normally take for the
nutrients in your food to be absorbed in
the intestine?
– A.) 5 days
– B.) 5 hours
– C.) 5 minutes
– D.) 5 seconds
– E.) Nobody Knows
Copyright © 2010 Ryan P. Murphy
• How long does it normally take for the
nutrients in your food to be absorbed in
the intestine?
– A.) 5 days
– B.) 5 hours
– C.) 5 minutes
– D.) 5 seconds
– E.) Nobody Knows
Copyright © 2010 Ryan P. Murphy
• The nutrients in your food get broken
down into small substances (molecules)
and are absorbed into your bloodstream.
– Proteins to Amino Acids
– Starches to simple sugars
– Fats to Fatty Acids and Glycerol
Once these are put into your
bloodstream, they then can be used for
energy and other purposes.
Copyright © 2010 Ryan P. Murphy
“Hoot” “Hoot” “They are sure burning a lot of
sugar running that fast.”
• The nutrients in your food get broken
down into small substances (molecules)
and are absorbed into your bloodstream.
– Proteins to Amino Acids
– Starches to simple sugars
– Fats to Fatty Acids and Glycerol
Once these are put into your
bloodstream, they then can be used for
energy and other purposes.
Copyright © 2010 Ryan P. Murphy
“Hoot” “Hoot” “They are sure burning a lot of
sugar running that fast.”
• The nutrients in your food get broken
down into small substances (molecules)
and are absorbed into your bloodstream.
– Proteins to Amino Acids
– Starches to simple sugars
– Fats to Fatty Acids and Glycerol
Once these are put into your
bloodstream, they then can be used for
energy and other purposes.
Copyright © 2010 Ryan P. Murphy
• The nutrients in your food get broken
down into small substances (molecules)
and are absorbed into your bloodstream.
Once these are put into your
bloodstream, they then can be used for
energy and other purposes.
Copyright © 2010 Ryan P. Murphy
• The nutrients in your food get broken
down into small substances (molecules)
and are absorbed into your bloodstream.
– Proteins to Amino Acids
Once these are put into your
bloodstream, they then can be used for
energy and other purposes.
Copyright © 2010 Ryan P. Murphy
• The nutrients in your food get broken
down into small substances (molecules)
and are absorbed into your bloodstream.
– Proteins to Amino Acids
– Starches to simple sugars
Once these are put into your
bloodstream, they then can be used for
energy and other purposes.
Copyright © 2010 Ryan P. Murphy
• The nutrients in your food get broken
down into small substances (molecules)
and are absorbed into your bloodstream.
– Proteins to Amino Acids
– Starches to simple sugars
– Fats to Fatty Acids and Glycerol
Once these are put into your
bloodstream, they then can be used for
energy and other purposes.
Copyright © 2010 Ryan P. Murphy
• The nutrients in your food get broken
down into small substances (molecules)
and are absorbed into your bloodstream.
– Proteins to Amino Acids
– Starches to simple sugars
– Fats to Fatty Acids and Glycerol
Once these are put into your
bloodstream, they then can be used for
energy and other purposes.
• The nutrients in your food get broken
down into small substances (molecules)
and are absorbed into your bloodstream.
– Proteins to Amino Acids
– Starches to simple sugars
– Fats to Fatty Acids and Glycerol
Once these are put into your
bloodstream, they then can be used for
energy and other purposes.
Copyright © 2010 Ryan P. Murphy
• Food’s macronutrients undergo chemical
breakdown as they move through the
digestive system.
• Food’s macronutrients undergo chemical
breakdown as they move through the
digestive system.
• Food’s macronutrients undergo chemical
breakdown as they move through the
digestive system.
• Food’s macronutrients undergo chemical
breakdown as they move through the
digestive system.
• Food’s macronutrients undergo chemical
breakdown as they move through the
digestive system.
• Food’s macronutrients undergo chemical
breakdown as they move through the
digestive system.
• Food’s macronutrients undergo chemical
breakdown as they move through the
digestive system.
• Food’s macronutrients undergo chemical
breakdown as they move through the
digestive system.

The small intestine is covered with millions
of small fingerlike structures called villi.
Copyright © 2010 Ryan P. Murphy
• The shape of the villi creates more surface
area for the absorption of nutrients.
Copyright © 2010 Ryan P. Murphy
• The shape of the villi creates more surface
area for the absorption of nutrients.
Copyright © 2010 Ryan P. Murphy
• The shape of the villi creates more surface
area for the absorption of nutrients.
orm
Copyright © 2010 Ryan P. Murphy
• The shape of the villi creates more surface
area for the absorption of nutrients.
orm
Copyright © 2010 Ryan P. Murphy
• The shape of the villi creates more surface
area for the absorption of nutrients.
orm
ollows
Copyright © 2010 Ryan P. Murphy
• The shape of the villi creates more surface
area for the absorption of nutrients.
orm
ollows
Copyright © 2010 Ryan P. Murphy
• The shape of the villi creates more surface
area for the absorption of nutrients.
orm
ollows
unction
Copyright © 2010 Ryan P. Murphy
• The shape of the villi creates more surface
area for the absorption of nutrients.
orm
ollows
unction
Copyright © 2010 Ryan P. Murphy
• The mop has ends similar to villi so that it
will pick up the most dirt.
– (More surface area)
Copyright © 2010 Ryan P. Murphy
• The appendix is a small pouch that extends
off the large intestine.
Copyright © 2010 Ryan P. Murphy
• The appendix is a small pouch that extends
off the large intestine.
– Plays a role in preventing infection.
Copyright © 2010 Ryan P. Murphy
• The appendix is a small pouch that extends
off the large intestine.
– Plays a role in preventing infection.
– Can rupture causing Appendicitis.
• Appendix needs to be removed quickly.
Copyright © 2010 Ryan P. Murphy
Copyright © 2010 Ryan P. Murphy
Copyright © 2010 Ryan P. Murphy
• Undigested food then passes through the
large intestine.
Copyright © 2010 Ryan P. Murphy
• Undigested food then passes through the
large intestine.
– The large intestine is much thicker than the
small intestine but much shorter.
Copyright © 2010 Ryan P. Murphy
• Undigested food then passes through the
large intestine.
– The large intestine is much thicker than the
small intestine but much shorter.
Cecum marks the beginning of the
large intestine and is basically a big
pouch that receives waste material
from the small intestine.
Copyright © 2010 Ryan P. Murphy

Large Intestine: Water is absorbed, bacteria
in the intestine also make important
vitamins.
Copyright © 2010 Ryan P. Murphy

Large Intestine: Water is absorbed, bacteria
in the intestine also make important
vitamins.
and it actually looks like…
Copyright © 2010 Ryan P. Murphy

Large Intestine: Water is absorbed, bacteria
in the intestine also make important
vitamins.
Copyright © 2010 Ryan P. Murphy

Rectum: Short tube at the end of the large
intestine that stores waste.
Copyright © 2010 Ryan P. Murphy
• Rectum: Short tube at the end of the large
intestine that stores waste.
– Anus: Opening at the end of the rectum.
Copyright © 2010 Ryan P. Murphy
• Rectum: Short tube at the end of the large
intestine that stores waste.
– Anus: Opening at the end of the rectum.
What it actually
looks like…
Copyright © 2010 Ryan P. Murphy
• Rectum: Short tube at the end of the large
intestine that stores waste.
– Anus: Opening at the end of the rectum.
What it actually
looks like…
Copyright © 2010 Ryan P. Murphy
• Video! The Digestive System
– http://www.youtube.com/watch?v=Z7xKYNz9
AS0&feature=related
Copyright © 2010 Ryan P. Murphy
• Activity! Teacher to minimize out of
slideshow on the next slide.
– Students drag images to complete digestive
system as teacher controls on their computer.
Copyright © 2010 Ryan P. Murphy
• Review Opportunity before Activity.
(Optional) Virtual tour of Digestive System.
– http://www.medtropolis.com/VBody.asp
Review of lesson / learn more about the digestive system at…
http://www.guam.net/pub/sshs/depart/science/mancuso/apbiolecture/3
2_DigestionNut/DigestionNutrition.htm
Copyright © 2010 Ryan P. Murphy
Copyright © 2010 Ryan P. Murphy
Copyright © 2010 Ryan P. Murphy
Copyright © 2010 Ryan P. Murphy
Answer:
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphyv
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
“Ummm”
“Doughnuts
are good.”
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
“Oh-no!” “We
are trying it one
more time.”
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Pancreas
Mouth
Pharynx
Esophagus
Liver
Large
Intestine
Gall
Bladder
Rectum
Small
Intestine
Anus
Copyright © 2010 Ryan P. Murphy
Liver
Small
Intestine
Stomach
Large
Intestine
Liver
Small
Intestine
Stomach
Large
Intestine
Liver
Small
Intestine
Stomach
Large
Intestine
Liver
Small
Intestine
Stomach
Large
Intestine
Liver
Small
Intestine
Stomach
Large
Intestine
Liver
Small
Intestine
Stomach
Large
Intestine
Liver
Small
Intestine
Stomach
Large
Intestine
Liver
Small
Intestine
Stomach
Large
Intestine
Liver
Small
Intestine
Stomach
Large
Intestine
Pharynx
Epiglottis
Esophagus
Pharynx
Epiglottis
Esophagus
Pharynx
Epiglottis
Esophagus
Pharynx
Epiglottis
Esophagus
Pharynx
Epiglottis
Esophagus
Pharynx
Epiglottis
Esophagus
• Activity! Digestion Simulation
– In the following simulation, we will be placing
food into an assembly line that breaks apart
instead of put together.
– The class will be divided into various stations /
organs of the digestive system.
– Each station will either be mechanical
digestion, chemical digestion, or both.
– Students will add “chemicals” with spray
bottles or mechanically shake / wave the bag
and then pass it to the next group.
Copyright © 2010 Ryan P. Murphy
• Activity! Digestion Simulation
– In the following simulation, we will be placing
food into an assembly line that breaks apart
instead of put together.
– The class will be divided into various stations /
organs of the digestive system.
– Each station will either be mechanical
digestion, chemical digestion, or both.
– Students will add “chemicals” with spray
bottles or mechanically shake / wave the bag
and then pass it to the next group.
Copyright © 2010 Ryan P. Murphy
• Activity! Digestion Simulation
– In the following simulation, we will be placing
food into an assembly line that breaks apart
instead of put together.
– The class will be divided into various stations /
organs of the digestive system.
– Each station will either be mechanical
digestion, chemical digestion, or both.
– Students will add “chemicals” with spray
bottles or mechanically shake / wave the bag
and then pass it to the next group.
Copyright © 2010 Ryan P. Murphy
• Activity! Digestion Simulation
– In the following simulation, we will be placing
food into an assembly line that breaks apart
instead of put together.
– The class will be divided into various stations /
organs of the digestive system.
– Each station will either be mechanical
digestion, chemical digestion, or both.
– Students will add “chemicals” with spray
bottles or mechanically shake / wave the bag
and then pass it to the next group.
Copyright © 2010 Ryan P. Murphy
Copyright © 2010 Ryan P. Murphy
Copyright © 2010 Ryan P. Murphy
Copyright © 2010 Ryan P. Murphy
Mouth
Saliva
Anus
Rectum
Pharynx
Large
Intestine
Esophagus
Stomach
Small
Intestine
Pancreas
Liver
Gall
Bladder
Copyright © 2010 Ryan P. Murphy
• Teacher double bags 3 “bites” of Cheerios
with durable trash bags. (3 trials)
Copyright © 2010 Ryan P. Murphy
• Teacher double bags 3 “bites” of Cheerios
with durable trash bags. (3 trials)
– Have tray under bags just incase as they move
down the GI Tract.
Copyright © 2010 Ryan P. Murphy
• Teacher double bags 3 “bites” of Cheerios
with durable trash bags. (3 trials)
– Have tray under bags just incase as they move
down the GI Tract.
– Students should use white paper to label their
part of the GI Tract and keep it in front of them.
Ex. Small Intestine
– Questions will be addressed at the end of the
process.
Copyright © 2010 Ryan P. Murphy
Copyright © 2010 Ryan P. Murphy
Mouth - Students chew /
mechanically break up
Cheerios.
Copyright © 2010 Ryan P. Murphy
Mouth - Students chew /
mechanically break up
Cheerios.
Salivary Gland - Students use
spray bottles to moisten food /
chemically break down starches
Copyright © 2010 Ryan P. Murphy
Mouth - Students chew /
mechanically break up
Cheerios.
Salivary Gland - Students use
spray bottles to moisten food /
chemically break down starches
Pharynx – Student begins swallow
reflex / shake bag (Mechanical)
Copyright © 2010 Ryan P. Murphy
Mouth - Students chew /
mechanically break up
Cheerios.
Pharynx – Student begins swallow
reflex / shake bag (Mechanical)
Salivary Gland - Students use
spray bottles to moisten food /
chemically break down starches
Esophagus: Students wave /
shake bag (Peristalsis) and one
student sprays with water
(mucous)
.
Copyright © 2010 Ryan P. Murphy
Mouth - Students chew /
mechanically break up
Cheerios.
Pharynx – Student begins swallow
reflex / shake bag (Mechanical)
Salivary Gland - Students use
spray bottles to moisten food /
chemically break down starches
Esophagus: Students wave /
shake bag (Peristalsis) and one
student sprays with water
(mucous)
Stomach: Students churn contents
over and over again (mechanical).
Students sprays with bottle (gastric
juices) HCL (chemical).
Copyright © 2010 Ryan P. Murphy
Mouth - Students chew /
mechanically break up
Cheerios.
Pharynx – Student begins swallow
reflex / shake bag (Mechanical)
Liver – Student passes bile
(chemical) to the Gall Bladder.
Salivary Gland - Students use
spray bottles to moisten food /
chemically break down starches
Esophagus: Students wave /
shake bag (Peristalsis) and one
student sprays with water
(mucous)
Stomach: Students churn contents
over and over again (mechanical).
Students sprays with bottle (gastric
juices) HCL (chemical).
Copyright © 2010 Ryan P. Murphy
Mouth - Students chew /
mechanically break up
Cheerios.
Pharynx – Student begins swallow
reflex / shake bag (Mechanical)
Liver – Student passes bile
(chemical) to the Gall Bladder.
Gall Bladder: Bile (jelly) is
distributed to the bag
(chemical) just after it
enters small intestine.
Salivary Gland - Students use
spray bottles to moisten food /
chemically break down starches
Esophagus: Students wave /
shake bag (Peristalsis) and one
student sprays with water
(mucous)
Stomach: Students churn contents
over and over again (mechanical).
Students sprays with bottle (gastric
juices) HCL (chemical).
Copyright © 2010 Ryan P. Murphy
Mouth - Students chew /
mechanically break up
Cheerios.
Pharynx – Student begins swallow
reflex / shake bag (Mechanical)
Liver – Student passes bile
(chemical) to the Gall Bladder.
Gall Bladder: Bile (jelly) is
distributed to the bag
(chemical) just after it
enters small intestine.
Salivary Gland - Students use
spray bottles to moisten food /
chemically break down starches
Esophagus: Students wave /
shake bag (Peristalsis) and one
student sprays with water
(mucous)
Stomach: Students churn contents
over and over again (mechanical).
Students sprays with bottle (gastric
juices) HCL (chemical).
Pancreas: Student sprays bottle into
small intestine (chemical)
Copyright © 2010 Ryan P. Murphy
Mouth - Students chew /
mechanically break up
Cheerios.
Pharynx – Student begins swallow
reflex / shake bag (Mechanical)
Liver – Student passes bile
(chemical) to the Gall Bladder.
Gall Bladder: Bile (jelly) is
distributed to the bag
(chemical) just after it
enters small intestine.
Salivary Gland - Students use
spray bottles to moisten food /
chemically break down starches
Esophagus: Students wave /
shake bag (Peristalsis) and one
student sprays with water
(mucous)
Stomach: Students churn contents
over and over again (mechanical).
Students sprays with bottle (gastric
juices) HCL (chemical).
Pancreas: Student sprays bottle into
small intestine (chemical)
Small Intestine: Wave and shake
(Mechanical). One students
sprays with bottle (mucous)
Students take contents out of bag
and press into strainer. Juice to
collect in tray (Nutrients).
Copyright © 2010 Ryan P. Murphy
Mouth - Students chew /
mechanically break up
Cheerios.
Pharynx – Student begins swallow
reflex / shake bag (Mechanical)
Liver – Student passes bile
(chemical) to the Gall Bladder.
Gall Bladder: Bile (jelly) is
distributed to the bag
(chemical) just after it
enters small intestine.
Large Intestine: Students
constantly use a sponge to
collect any water that spills.
Student also adds vitamins
to the nutrient collection.
Salivary Gland - Students use
spray bottles to moisten food /
chemically break down starches
Esophagus: Students wave /
shake bag (Peristalsis) and one
student sprays with water
(mucous)
Stomach: Students churn contents
over and over again (mechanical).
Students sprays with bottle (gastric
juices) HCL (chemical).
Pancreas: Student sprays bottle into
small intestine (chemical)
Small Intestine: Wave and shake
(Mechanical). One students
sprays with bottle (mucous)
Students take contents out of bag
and press into strainer. Juice to
collect in tray (Nutrients).
Copyright © 2010 Ryan P. Murphy
Mouth - Students chew /
mechanically break up
Cheerios.
Pharynx – Student begins swallow
reflex / shake bag (Mechanical)
Liver – Student passes bile
(chemical) to the Gall Bladder.
Gall Bladder: Bile (jelly) is
distributed to the bag
(chemical) just after it
enters small intestine.
Large Intestine: Students
constantly use a sponge to
collect any water that spills.
Student also adds vitamins
to the nutrient collection.
Salivary Gland - Students use
spray bottles to moisten food /
chemically break down starches
Esophagus: Students wave /
shake bag (Peristalsis) and one
student sprays with water
(mucous)
Stomach: Students churn contents
over and over again (mechanical).
Students sprays with bottle (gastric
juices) HCL (chemical).
Pancreas: Student sprays bottle into
small intestine (chemical)
Small Intestine: Wave and shake
(Mechanical). One students
sprays with bottle (mucous)
Rectum: Student compacts material into a wad Students take contents out of bag
and press into strainer. Juice to
within a paper towel tube.
collect in tray (Nutrients).
Copyright © 2010 Ryan P. Murphy
Mouth - Students chew /
mechanically break up
Cheerios.
Pharynx – Student begins swallow
reflex / shake bag (Mechanical)
Liver – Student passes bile
(chemical) to the Gall Bladder.
Gall Bladder: Bile (jelly) is
distributed to the bag
(chemical) just after it
enters small intestine.
Large Intestine: Students
constantly use a sponge to
collect any water that spills.
Student also adds vitamins
to the nutrient collection.
Salivary Gland - Students use
spray bottles to moisten food /
chemically break down starches
Esophagus: Students wave /
shake bag (Peristalsis) and one
student sprays with water
(mucous)
Stomach: Students churn contents
over and over again (mechanical).
Students sprays with bottle (gastric
juices) HCL (chemical).
Pancreas: Student sprays bottle into
small intestine (chemical)
Small Intestine: Wave and shake
(Mechanical). One students
sprays with bottle (mucous)
Rectum: Student compacts material into a wad Students take contents out of bag
and press into strainer. Juice to
within a paper towel tube. Anus: Student
collect in tray (Nutrients).
disposes of the wad into the trash barrel /
compost at end with everyone in attendance.
Copyright © 2010 Ryan P. Murphy
Mouth - Students chew /
mechanically break up
Cheerios.
Pharynx – Student begins swallow
reflex / shake bag (Mechanical)
Liver – Student passes bile
(chemical) to the Gall Bladder.
Gall Bladder: Bile (jelly) is
distributed to the bag
(chemical) just after it
enters small intestine.
Large Intestine: Students
constantly use a sponge to
collect any water that spills.
Student also adds vitamins
to the nutrient collection.
Salivary Gland - Students use
spray bottles to moisten food /
chemically break down starches
“If each
group / student
canwave
say a/
Esophagus:
Students
fewshake
wordsbag
out (Peristalsis)
loud when they
and one
perform
the sprays
action everyone
student
with waterwill
learn more…Ex(mucous) “HCL stomach acid
being added” or “bile headed to the
Stomach:
Students
contents
gall bladder
from churn
the liver.”
over and over again (mechanical).
Students sprays with bottle (gastric
juices) HCL (chemical).
Pancreas: Student sprays bottle into
small intestine (chemical)
Small Intestine: Wave and shake
(Mechanical). One students
sprays with bottle (mucous)
Rectum: Student compacts material into a wad Students take contents out of bag
and press into strainer. Juice to
within a paper towel tube. Anus: Student
collect in tray (Nutrients).
disposes of the wad into the trash barrel /
compost at end with everyone in attendance.
Copyright © 2010 Ryan P. Murphy
• Digestive System Available Sheet
• Questions to Simulation?
– Please write a short paragraph describing the
GI Tract. Make sure to include some of the
following in your response.
•
•
•
•
•
•
•
•
•
•
•
Chemical digestion
Mechanical Digestion
Mouth
Esophagus
Stomach
Liver
Gall Bladder
Pancreas
Small Intestine
Large Intestine
Rectum
Copyright © 2010 Ryan P. Murphy
• Questions to Simulation?
– Please write a short paragraph describing the
GI Tract. Make sure to include some of the
following in your response.
•
•
•
•
•
•
•
•
•
•
•
Chemical digestion
Mechanical Digestion
Mouth
Esophagus
Stomach
Liver
Gall Bladder
Pancreas
Small Intestine
Large Intestine
Rectum
Copyright © 2010 Ryan P. Murphy
• The GI Tract begins in the mouth where food is
broken down mechanically and chemically. The
food passes through the pharynx and is moved
down the esophagus to the stomach. Acid and
movement break the food down further.
Chemicals are produced and then released in
the liver, gall bladder, and pancreas to the small
intestine. Food is broken up further in the
intestine and nutrients are absorbed. Water is
absorbed in the large intestine and vitamins
made. The waste is collects in the rectum until
disposal.
Copyright © 2010 Ryan P. Murphy
• The GI Tract begins in the mouth where food is
broken down mechanically and chemically. The
food passes through the pharynx and is moved
down the esophagus to the stomach. Acid and
movement break the food down further.
Chemicals are produced and then released in
the liver, gall bladder, and pancreas to the small
intestine. Food is broken up further in the
intestine and nutrients are absorbed. Water is
absorbed in the large intestine and vitamins
made. The waste is collects in the rectum until
disposal.
Copyright © 2010 Ryan P. Murphy
• The GI Tract begins in the mouth where food is
broken down mechanically and chemically. The
food passes through the pharynx and is moved
down the esophagus to the stomach. Acid and
movement break the food down further.
Chemicals are produced and then released in
the liver, gall bladder, and pancreas to the small
intestine. Food is broken up further in the
intestine and nutrients are absorbed. Water is
absorbed in the large intestine and vitamins
made. The waste is collects in the rectum until
disposal.
Copyright © 2010 Ryan P. Murphy
• The GI Tract begins in the mouth where food is
broken down mechanically and chemically. The
food passes through the pharynx and is moved
down the esophagus to the stomach. Acid and
movement break the food down further.
Chemicals are produced and then released in
the liver, gall bladder, and pancreas to the small
intestine. Food is broken up further in the
intestine and nutrients are absorbed. Water is
absorbed in the large intestine and vitamins
made. The waste is collects in the rectum until
disposal.
Copyright © 2010 Ryan P. Murphy
• The GI Tract begins in the mouth where food is
broken down mechanically and chemically. The
food passes through the pharynx and is moved
down the esophagus to the stomach. Acid and
movement break the food down further.
Chemicals are produced and then released in
the liver, gall bladder, and pancreas to the small
intestine. Food is broken up further in the
intestine and nutrients are absorbed. Water is
absorbed in the large intestine and vitamins
made. The waste is collects in the rectum until
disposal.
Copyright © 2010 Ryan P. Murphy
• The GI Tract begins in the mouth where food is
broken down mechanically and chemically. The
food passes through the pharynx and is moved
down the esophagus to the stomach. Acid and
movement break the food down further.
Chemicals are produced and then released in
the liver, gall bladder, and pancreas to the small
intestine. Food is broken up further in the
intestine and nutrients are absorbed. Water is
absorbed in the large intestine and vitamins
made. The waste is collects in the rectum until
disposal.
Copyright © 2010 Ryan P. Murphy
• The GI Tract begins in the mouth where food is
broken down mechanically and chemically. The
food passes through the pharynx and is moved
down the esophagus to the stomach. Acid and
movement break the food down further.
Chemicals are produced and then released in
the liver, gall bladder, and pancreas to the small
intestine. Food is broken up further in the
intestine and nutrients are absorbed. Water is
absorbed in the large intestine and vitamins
made. The waste is collected and compacted in
the rectum until disposal.
Copyright © 2010 Ryan P. Murphy
• The GI Tract begins in the mouth where food is
broken down mechanically and chemically. The
food passes through the pharynx and is moved
down the esophagus to the stomach. Acid and
movement break the food down further.
Chemicals are produced and then released in
the liver, gall bladder, and pancreas to the small
intestine. Food is broken up further in the
intestine and nutrients are absorbed. Water is
absorbed in the large intestine and vitamins
made. The waste is collected and compacted in
the rectum until disposal.
Copyright © 2010 Ryan P. Murphy
• Digestive System Available Sheet
• Try and guess the mystery picture beneath
the boxes.
– Raise your hand when you think you know.
You only get one guess.
Copyright © 2010 Ryan P. Murphy
Copyright © 2010 Ryan P. Murphy
• Try and guess the mystery picture beneath
the boxes.
– Raise your hand when you think you know.
You only get one guess.
Copyright © 2010 Ryan P. Murphy
Copyright © 2010 Ryan P. Murphy
• Try and guess the mystery picture beneath
the boxes.
– Raise your hand when you think you know.
You only get one guess.
Copyright © 2010 Ryan P. Murphy
Copyright © 2010 Ryan P. Murphy
Villi in the
small
intestine
orm
orm
ollows
orm
ollows
unction
orm
ollows
unction
• You should be close to page 14 in your
bundle.
• You can now lightly color these pictures and
provide informative text in the white space.
Atom
Molecule
Cell
Organelle
Cell
Tissue
Cells are the
structural and
functional units
of all living
organisms.
–
orm
ollows
function
Humans have
some 75-100
Trillion
Organ
Organ
System
–Spongy Bone
–Compact Bone
Tendon
Individual
Ligament
Name
these
muscles
Homeostasis: The
ability of an organism or
cell to maintain internal
equilibrium by adjusting
its physiological
processes.regardless of
outside conditions.
Name the
major
bones
shown
below. Use
your
resource
sheets
•Long Bones
•Flat Bones
•Irregular Bones
•Short Bones
Fast
Food 
Atom
Molecule
Cell
Organelle
Cell
Tissue
Cells are the
structural and
functional units
of all living
organisms.
–
orm
ollows
function
Humans have
some 75-100
Trillion
Organ
Organ
System
–Spongy Bone
–Compact Bone
Tendon
Individual
Ligament
Name
these
muscles
Homeostasis: The
ability of an organism or
cell to maintain internal
equilibrium by adjusting
its physiological
processes.regardless of
outside conditions.
Name the
major
bones
shown
below. Use
your
resource
sheets
•Long Bones
•Flat Bones
•Irregular Bones
•Short Bones
Fast
Food 
Atom
Molecule
Cell
Organelle
Cell
Tissue
Cells are the
structural and
functional units
of all living
organisms.
–
orm
ollows
function
Humans have
some 75-100
Trillion
Organ
Organ
System
–Spongy Bone
–Compact Bone
Tendon
Individual
Homeostasis: The
ability of an organism or
cell to maintain internal
equilibrium by adjusting
its physiological
processes.regardless of
Ligament
Name
these
muscles
Name them
outside conditions.
Name the
major
bones
shown
below. Use
your
resource
sheets
•Long Bones
•Flat Bones
•Irregular Bones
•Short Bones
Fast
Food 
Atom
Molecule
Cell
Organelle
Cell
Tissue
Cells are the
structural and
functional units
of all living
organisms.
–
orm
ollows
function
Humans have
some 75-100
Trillion
Organ
Organ
System
–Spongy Bone
–Compact Bone
Tendon
Individual
Homeostasis: The
ability of an organism or
cell to maintain internal
equilibrium by adjusting
its physiological
processes.regardless of
Ligament
Name
these
muscles
Name them
outside conditions.
Name the
major
bones
shown
below. Use
your
resource
sheets
•Long Bones
•Flat Bones
•Irregular Bones
•Short Bones
Fast
Food 
Atom
Molecule
Cell
Organelle
Cell
Tissue
Cells are the
structural and
functional units
of all living
organisms.
–
orm
ollows
function
Humans have
some 75-100
Trillion
Organ
Organ
System
–Spongy Bone
–Compact Bone
Tendon
Individual
Homeostasis: The
ability of an organism or
cell to maintain internal
equilibrium by adjusting
its physiological
processes.regardless of
Ligament
Name
these
muscles
Name them
Villi
outside conditions.
Name the
major
bones
shown
below. Use
your
resource
sheets
•Long Bones
•Flat Bones
•Irregular Bones
•Short Bones
Fast
Food 
• Video Link! Digestive System Crash Course.
(Optional and advanced)
– Preview for language.
– http://www.youtube.com/watch?v=s06XzaKqELk
• PowerPoint Review Game: The Digestive
System
Copyright © 2010 Ryan P. Murphy
• “AYE” Advance Your Exploration ELA and
Literacy Opportunity Worksheet
– Visit some of the many provided links or..
– Articles can be found at (w/ membership to
NABT and NSTA)
• http://www.nabt.org/websites/institution/index.php?p=
1
• http://learningcenter.nsta.org/browse_journals.aspx?j
Please visit at least one of the
ournal=tst
“learn more” educational links
provided in this unit and
complete this worksheet.
• “AYE” Advance Your Exploration ELA and
Literacy Opportunity Worksheet
– Visit some of the many provided links or..
– Articles can be found at (w/ membership to NABT
and NSTA)
• http://www.nabt.org/websites/institution/index.php?p=1
• http://learningcenter.nsta.org/browse_journals.aspx?jo
urnal=tst
Human Body Unit
Part
VI/XIII
The Digestive
System
Copyright © 2010 Ryan P. Murphy