Question 1

The three gastrointestinal hormones that function as enterogastrones are ____________________, ____________________, and ____________________.

Accepted Answer

The answer of The three gastrointestinal hormones that function as...

Question 2

Migration of a new intestinal epithelial cell from the crypt at the base of the villus to the tip of the villus requires about three weeks.

Accepted Answer

A) True 
 B)False

Question 3

Describe how food in the stomach affects other structures in the digestive system.Include information about hormonal and neural reflexes.

Accepted Answer

The answer of Describe how food in the stomach affects...

Question 4

Match hormone with action.
a.gastrin
b.secretin
c.CCK
d.glucose-dependent insulinotropic peptide
e.histamine
-Causes gallbladder contraction

Accepted Answer

The answer of Match hormone with action.
a.gastrin
b.secretin
c.CCK
d.glucose-dependent insulinotropic peptide
e.histamine
-Causes gallbladder...

Question 5

Bile is being made continuously by the gallbladder, but the bile is secreted only when food is present in the duodenum..

Accepted Answer

A) True 
 B)False

Question 6

___________ is the gas that occasionally passes from the anus, and it is derived from swallowed air and gas produced by bacterial fermentation in the colon.

Accepted Answer

The answer of ___________ is the gas that occasionally passes...

Question 7

Chyme forms in the stomach, not in the mouth or esophagus.

Accepted Answer

A) True 
 B)False

Question 8

The rate of gastric emptying is influenced by factors both in the stomach and in the duodenum.

Accepted Answer

A) True 
 B)False

Question 9

The serosa is the

Accepted Answer

A) abdominal cavity containing the stomach 
B) blood supply to the stomach 
C) inner lining of the digestive tract 
D) layer of smooth muscle of the digestive tract 
E) outer connective-tissue covering of the digestive tract

Question 10

The pancreatic ____________________ secretion neutralizes acidic gastric contents in the duodenal lumen.

Accepted Answer

The answer of The pancreatic ____________________ secretion neutralizes acidic gastric...

Question 11

Chewing increases

Accepted Answer

A) salivary secretion 
B) gastric secretion 
C) pancreatic secretion 
D) liver secretion 
E) all of the above

Question 12

The typical coloration of the feces is due to

Accepted Answer

A) bile salts 
B) undigested cellulose 
C) aqueous NaHCO3 secretion 
D) modified bilirubin 
E) disintegrated epithelial cells

Question 13

Which statement about the colon is correct?

Accepted Answer

A) It has as much absorptive capacity as the small intestine. 
B) It is the site of the final stages of carbohydrate and protein digestion. 
C) Its movements are slower than movements in the small intestine. 
D) Both a and c 
E) All of the above

Question 14

Protein digestion begins in the stomach under the influence of pepsin; it continues in the duodenal lumen under the influence of pancreatic proteolytic enzymes; and it is completed intracellularly in the small intestinal brush border.

Accepted Answer

A) True 
 B)False

Question 15

Humans are not capable of digesting cellulose, but some of the enteric bacteria have this capability.

Accepted Answer

A) True 
 B)False

Question 16

The most potent stimulus for gastrin release is __________________ in the stomach..

Accepted Answer

The answer of The most potent stimulus for gastrin release...

Question 17

Which control mechanism brings about segmentation in the terminal portion of the small intestine?

Accepted Answer

A) Gastroileal reflex 
B) Distention of the stomach 
C) Secretin action 
D) a and b 
E) None of the above

Question 18

The primary absorption of nutrients, water, and electrolytes takes place in the large intestine, converting chyme to fecal material.

Accepted Answer

A) True 
 B)False

Exam 16: The Digestive System

The three gastrointestinal hormones that function as enterogastrones are , , and .

Migration of a new intestinal epithelial cell from the crypt at the base of the villus to the tip of the villus requires about three weeks.

Describe how food in the stomach affects other structures in the digestive system.Include information about hormonal and neural reflexes.

Match hormone with action. a.gastrin b.secretin c.CCK d.glucose-dependent insulinotropic peptide e.histamine -Causes gallbladder contraction

Bile is being made continuously by the gallbladder, but the bile is secreted only when food is present in the duodenum..

___________ is the gas that occasionally passes from the anus, and it is derived from swallowed air and gas produced by bacterial fermentation in the colon.

Chyme forms in the stomach, not in the mouth or esophagus.

The rate of gastric emptying is influenced by factors both in the stomach and in the duodenum.

The serosa is the

The pancreatic ____________________ secretion neutralizes acidic gastric contents in the duodenal lumen.

Chewing increases

The typical coloration of the feces is due to

Which statement about the colon is correct?

Protein digestion begins in the stomach under the influence of pepsin; it continues in the duodenal lumen under the influence of pancreatic proteolytic enzymes; and it is completed intracellularly in the small intestinal brush border.

Humans are not capable of digesting cellulose, but some of the enteric bacteria have this capability.

The most potent stimulus for gastrin release is __________________ in the stomach..

Which control mechanism brings about segmentation in the terminal portion of the small intestine?

The primary absorption of nutrients, water, and electrolytes takes place in the large intestine, converting chyme to fecal material.