Basics of the Gastrointestinal System

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1)  Describe how food gets from your lips to butt.  What organs does it travel through?  Name the organ, and include sphincters, valves, or other important landmarks in the sub-headings.  See if you come up with the same ones that I do.  Don’t peek at the answers until you have tried answering #1 and 2!

1.

2.

3.

a.

b.

c.

4.

a.

b.

c.

5.

a.

b.

c.

d.

e.

6.

7.

8.

 

2)  What are the 3 ‘supplementary’ organs in the digestive system?


3)  What are the important functions of each part of the GI system?  Your answers probably won’t be “word for word” the same as mine, so don’t sweat over that, but the gist of it should be the same.

1.      Mouth

a.

2.      Esophagus

a.

3.      Stomach – __________________________

 

a.       Cardiac Sphincter (Lower Esophageal Sphincter)

i.

b.      Body

i.

1.

2.

3.

4.

c.       Pyloric sphincter – _______________________

4.      Small Intestines

a.

b.

i.

ii.

iii.

5.      Large Intestines

a.

b.

6.      Sigmoid Colon – ­­­­­­­­­­­­­­­­­____________________

7.      Rectum – ________________________

8.      Anal Sphincters – ____________________________

9.      Liver

a.

10.  Biliary Tract (Gall Bladder)

a.

b.

11.  Pancreas – ___________________________

a.

b.

c.

d.

 

Fun (but gross) fact:  Solid feces is made of of 30% dead bacteria, 30% fiber, 10-20% fat (from digested epithelial cells and dead bacteria).

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One Comment

  1. Dafna

    Hi. I really liked the article on nephritis and nephrosis. Are there more similar to this? Or do I need to sign up for the PASS program.
    Thank you,
    -Dafna

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