1. Title: Anat & Phys 3/2/07 Stomach Video “Fat and Happy” Objectives:
11/18/2018
Title: Anat & Phys 3/2/07
Objectives: .
Class Topics
Stomach
Video “Fat and Happy”
"The pessimist sees difficulty in every opportunity. The optimist sees opportunity in every difficulty."
Winston Churchill
Sunday, November 18, :54 PM

2. Class Assignments Due this class period Due next class period
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Class Assignments
What
By When
Due this class period
Due next class period
Due in the future

3. Stomach 3 major functions
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Stomach 3 major functions
1. Storage of ingested food
2. Disruption of chemical bonds found in ingested food
3. Mechanical processing of ingested food

4. 11/18/2018
Stomach
Produces soupy mixture of partially digested material, acids, enzymes
chyme
Rugae: many folds
allows for expansion
liters in a full stomach

5. Stomach regions Cardia Pylorus Fundus Body secretes mucus
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Stomach regions
Cardia
secretes mucus
Fundus
used in cases of a very full stomach
can contain air
burp
Body
region of mechanical processing
Most gastric pits
Pylorus
region in which chyme is transported to small intestine

6. 11/18/2018
Stomach Drawing

7. Gastric Pits Found in mucosa and submucosa Secrete gastric juices
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Gastric Pits
Found in mucosa and submucosa
Secrete gastric juices
Parietal cells
secrete HCl
transported as two separate ions pH
breaks down cell walls and connective tissue
kills most microorganisms
activates pepsin (digestive enzyme)

8. Gastric Pits Chief cells Endocrine cells secrete pepsinogen
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Gastric Pits
Chief cells
secrete pepsinogen
inactive enzyme
cleaves into pepsin (HCl)
Endocrine cells
secrete hormones
gastrin - stimulates secretions from parietal and chief cells and muscle contractions

9. Video Fat and Happy Eating to Live Complete the worksheet
11/18/2018
Video
Fat and Happy
Complete the worksheet
Eating to Live
Make a note of the different areas of the digestive tract throughout the video

10. Ruminant Digestion 4 chambered stomach Reticulum Rumen Omasum abomasum
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Ruminant Digestion
4 chambered stomach
Reticulum
Rumen
Omasum
abomasum

11. Gastric Bypass Surgery
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Gastric Bypass Surgery
NIDDK web site
Image taken from

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Other examples
Rabbits
Horses