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THE
DIGESTIVE
SYSTEM
BY: CHELSEY RANDLE AND BAYLEE
STOCKFORD
LESSON PLAN
• Present PowerPoint
• Present painting and model
• Pass out model
• Questions
• Worksheet
HOW IT WORKS
• The digestive system is a series of
hollow organs joined in a long, twisting
tube from the mouth to the anus
• Inside this tube is a lining called the
mucosa.
• In the mouth, stomach, and small
intestine, the mucosa contains tiny
glands that produce juices to help
digest food.
• Two solid organs, the liver and the
pancreas, produce digestive juices that
reach the intestine through small tubes.
WHY IT’S IMPORTANT
• When we eat bread, meat, and vegetables, they are not in a
form that the body can use as nourishment.
• The things we eat and drink must be changed into smaller
molecules of nutrients before they can be absorbed into
the blood and carried to cells throughout the body.
• Digestion is the process by which food and drink are
broken down into their smallest parts so that the body can
use them to build and nourish cells and to provide energy.
DIGESTION
• Digestion involves the mixing of
food.
• Its movement through the
digestive tract, and the chemical
breakdown of the bigger molecules
of food into smaller molecules.
• Digestion begins in the mouth,
when we chew and swallow, and is
completed in the small intestine.
NEED TO KNOW
FACTS
• For every 2 weeks the human
stomach produces a new layer of
mucous lining, otherwise the
stomach will digest it’s self.
• The liver preforms 500 different
functions and it weighs about 1.6
kilos being the heaviest internal
organ of the body.
• Liver cells take several years to
replace themselves.
• The human stomach contains about
35 million small digestive glands.
FACTS CONTINUED..
• The stomach also produces about
2.5 liters of gastric juice everyday.
• In an average person it takes about 8
seconds for food to travel down the
food pipe, 3-5 hours in the small
intestine, and 3-4 days in the large
intestine.
• The body takes 6 hours to digest a
high fat meal and 2 hours for a high
carbohydrate meal.
DISORDERS OF THE
DIGESTIVE SYSTEM
• One of the most sensitive components of the human body
is the digestive system. It's easily upset by disease,
emotional factors, and even other parts of the body.
• Around 70 million Americans are affected by digestive
system diseases.
CROHN’S DISEASE
• Crohn's disease is a form of
inflammatory bowel disease. It
usually affects the intestines, but
may occur anywhere from the
mouth to the end of the rectum
(anus).
• The cause is unknown.
• It’s when your body's immune
system attacks and destroys
healthy body tissue.
• Crohn’s disease may occur at any
age, it usually occurs between 1535.
GASTROESOPHAGEAL
REFLUX DISEASE (GERD)
•
More than 30 million Americans
have been diagnosed with
GERD.
•
The most common symptom is
heartburn that climbs from the
stomach to the throat or middle
of the chest.
•
GERD occurs when the lower
esophageal sphincter doesn't
close correctly, allowing
digestive juices plus stomach
contents to travel up the
esophagus.
•
Untreated GERD can lead to
more serious conditions.
Treatment consists primarily of
dietary changes and prescription
medications.
ROAD TO A GOOD
DIGESTIVE SYSTEM
• Have good exercise.
• Don’t eat food with high fat
contents.
• Eat moderate amounts at a
leisurely pace.
• Don’t eat while stressed.
• Don’t eat in a stressful
environment.
YOUTUBE LINK
• http://www.youtube.com/wa
tch?v=08VyJOEcDos
BIBLIOGRAPHY PAGE
•
"5 Common Digestive Disorders." Yahoo Health. N.p., n.d.
Web. 12 Mar. 2014.
•
"Asea And The Digestive System." Asea Water Advancing
Life RSS. N.p., n.d. Web. 12 Mar. 2014.
http://www.redoxbalancing.com/asea-and-the-digestivesystem/
•
"Autistic Children Have Different Gastrointestinal Bacteria."
SciTech Daily. N.p., n.d. Web. 12 Mar. 2014.
http://scitechdaily.com/autistic-children-have-differentgastrointestinal-bacteria/
•
"Digestive System." Know Your Body -. N.p., n.d. Web. 11
Mar. 2014.
http://www.medindia.net/know_ur_body/interesting-bodyfacts-about-digestive-system.asp
BIB CONT.
•
"Virtual Anatomy Textbook: Digestive System." Virtual Anatomy
Textbook: Digestive System. N.p., n.d. Web. 12 Mar. 2014.
http://www.acm.uiuc.edu/sigbio/project/digestive/index.html
•
N.d. Web. 11 Mar. 2014.
http://www.factmonster.com/images/ESCI358DIGSYS002.gif
•
N.d. Web. 12 Mar. 2014. http://www.paradoja7.com/wpcontent/uploads/2013/12/images-of-digestive-system-of-humanbody.gif
•
Regina Avarham, “The Digestive System.” 2000. 3/11/14
•
"Crohn's Diease." Crohn's Disease. N.p., n.d. Web. 12 Mar. 2014.
http://www.nytimes.com/health/guides/disease/crohnsdisease/overview.html
•
"Gastroesophageal Reflux Disease (GERD) Symptoms, Causes,
Treatment - What Is GERD (acid Reflux)? - MedicineNet."
MedicineNet. N.p., n.d. Web. 12 Mar. 2014.
http://www.medicinenet.com/gastroesophageal_reflux_disease_gerd
/page2.htm