Download Lecture: 4/28/2014 Digestive System Part 2

The Digestive
System – Part 2
Gaiser Life Science
Know
The Digestive System – Part 2
What happens to the thick liquid after the stomach is
finished with it?
“I don’t know any.” is not an acceptable answer.
Use complete sentences.
Evidence
Draw, captions and color diagram on TB page 528
Clarifying ?s
Stomach’s
job (8)
Liver’s
job (9)
bile
Pancreas’
job (10)
The Digestive System – Part 2
Information
8. Small amounts of the thick liquid are released into the
small intestine by the pyloric sphincter. This is where most
of chemical digestion and nutrient absorption takes place.
Example: Enzymes are produced in the small
intestines, liver, and pancreas.
FYI: The liver is the largest and heaviest organ in the body.
a. Breaks down medicine and other substances.
b. Helps eliminate nitrogen
c. Produces bile
- Bile emulsifies fats or breaks them up into small particles
that enzymes from the pancreas can break down further.
FYI: Bile from the liver is stored in the gall bladder and
released from there into the stomach. Doctors can
surgically remove the gall bladder with minor side effects.
The pancreas produces enzymes to break down starches,
proteins, and fats.
Page 66
Clarifying ?s
Small
intestine’s
job (11)
The Digestive System – Part 2
Information
When chemical digestion is finished, absorption of
nutrients happens in the small intestine. This takes place
in structures called villi.
- tiny finger-like projections that cover the inside surface of
villi
the small intestine. Nutrients are transferred to the blood
vessels in the villi.
Blood then carries nutrients to the rest of the body.
Large
a. This is the last stage of digestion. Water and
intestine’s job
undigested food (fiber) move through the large
(12)
intestine. Water is removed from the waste, also called
feces, and returned to the body.
b. The waste is then compressed to solid form and held
in the colon until the organism can dispose of it.
Elimination (13) At this time the waste is eliminated by the body as it
passes through the rectum; this is commonly called a
bowel movement.
Summary:
Page 68
Clarifying ?s
Stomach’s
job (8)
Liver’s
job (9)
bile
Pancreas’
job (10)
The Digestive System – Part 2
Information
8. Small amounts of the thick liquid are released into the
small intestine by the pyloric sphincter. This is where most
of chemical digestion and nutrient absorption takes place.
Example: Enzymes are produced in the small
intestines, liver, and pancreas.
FYI: The liver is the largest and heaviest organ in the body.
a. Breaks down medicine and other substances.
b. Helps eliminate nitrogen
c. Produces bile
- Bile emulsifies fats or breaks them up into small particles
that enzymes from the pancreas can break down further.
The pancreas produces enzymes to break down starches,
proteins, and fats.
Clarifying ?s
Small
intestine’s
job (11)
The Digestive System – Part 2
Information
When chemical digestion is finished, absorption of
nutrients happens in the small intestine. This takes place
in structures called villi.
- tiny finger-like projections that cover the inside surface of
villi
the small intestine. Nutrients are transferred to the blood
vessels in the villi.
Blood then carries nutrients to the rest of the body.
Large
a. This is the last stage of digestion. Water and
intestine’s job
undigested food (fiber) move through the large
(12)
intestine. Water is removed from the waste, also called
feces, and returned to the body.
b. The waste is then compressed to solid form and held
in the colon until the organism can dispose of it.
Elimination (13) At this time the waste is eliminated by the body as it
passes through the rectum; this is commonly called a
bowel movement.
Summary:
Pictures for this PowerPoint came from the following internet link:
http://healinglightseries.com/tutorialdigestion.html
This PowerPoint was created from Charlene Shea’s lecture notes by Tim
Paterek. It is copyrighted and may not be reproduced outside the
Vancouver School District. All pictures came from Google Image Search. To
fall within the Fair Use Guidelines, this PowerPoint must be used within the
confines of the classroom and may not be published back onto the Internet
unless the pictures are removed.