Digestive System Questions

Question 1

Produces enzymes that break down all categories of food stuffs

Answer 1

Pancreas

Question 2

Increases surface area for absorption via villi and microvilli

Answer 2

small intestine

Question 3

Bacteria process undigested chyme from the small intestine

Answer 3

large intestine

Question 4

Only digestive structure with three muscle layers

Answer 4

stomach

Question 5

Receives blood via the hepatic portal system

Answer 5

Liver

Question 6

Contains the brush border enzymes that complete digestion of carbohydrates and proteins

Answer 6

Small intestine

Question 7

Main function is to filter and process the nutrient-rich blood delivered to it

Answer 7

Liver

Question 8

Produces intrinsic factor

Answer 8

Stomach

Question 9

The function of the hepatic portal circulation is to ____.

Answer 9

collect absorbed nutrients for metabolic processing or storage

Question 10

Which of the following is not a factor that helps create the stomach mucosal barrier?

Answer 10

renin

Question 11

Which hormone causes an increased output of enzyme-rich pancreatic juice and stimulates gallbladder contraction to release bile?

Answer 11

cholecystokinin

Question 12

The absorptive effectiveness of the small intestine is enhanced by increasing the surface area of the mucosal lining. Which of the following accomplish this task?

Answer 12

plicae circulares and intestinal villi

Question 13

Chyme is created in the ____.

Answer 13

stomach

Question 14

Hydrochloric acid is secreted by which of the secretory cells in the stomach?

Answer 14

parietal cells

Question 15

Peristaltic waves are ________.

Answer 15

waves of muscular contractions that propel contents from one point to another

Question 16

Chemical digestion reduces large complex molecules to simpler compounds by the process of _____.

Answer 16

catabolism

Question 17

The terminal portion of the small intestine is known as the ____.

Answer 17

ileum

Question 18

Digestion of which of the following would be affected the most if the liver were severely damages?

Answer 18

lipids

Question 19

___________ is locally regulated in the blood by the active form of vitamin D, which acts as a cofactor.

Answer 19

Calcium

Question 20

Surgical cutting of the lingual frenulum would occur in which part of the body?

Answer 20

tongue

Question 21

A fluid secreted into the small intestine during digestion that contains cholesterol, emulsification agents, and phospholipids is __________.

Answer 21

bile

Question 22

Which of the following is not characteristic of the large intestine? It ______

Answer 22

is longer than the small intestine

Question 23

Which is NOT a major function of the colon?

Answer 23

reclamation of the lipids

Question 24

The bacteria colonizing the colon:

Answer 24

• ferment indigestible carbohydrates

- synthesize B complex vitamins and vitamin K

Question 25

List, in proper order, the distinct region of the large intestine

Answer 25

1. ascending colon 2. hepatic flexure 3. transverse colon 4. splenic flexure 5. descending colon 6. sigmoid colon 7. rectum 8. anus