Question 1

Match the digestive secretions, labelled a. through e., to the descriptions. (Options may be used more than once or not at all.)
a.bile salts
b.pepsin(ogen)
c.amylase
d.lipase
e.trypsin(ogen)
-carbohydrate digestion begins

Accepted Answer

a

Question 2

Where is the pyloric sphincter located?

Accepted Answer

A)  between the esophagus and the stomach
B)  between the oral cavity and the esophagus
C)   between the large intestine and the rectum
D)   between the stomach and the small intestine D

Question 3

The rate of gastric emptying depends entirely on the volume and fluidity of gastric contents.

Accepted Answer

A) True 
 B)False  False

Question 4

Which of the following substances is a precursor to an enzyme that functions in the stomach?

Accepted Answer

A)  pepsinogen
B)  HCl
C)   intrinsic factor
D)   gastrin

Question 5

Digestive enzymes produced by the small intestine are not secreted into the lumen but act intracellularly.

Accepted Answer

A) True 
 B)False

Question 6

Which statement does NOT correctly describe the defecation reflex?

Accepted Answer

A)  It is initiated when mass movements force fecal material into the rectum, stimulating stretch receptors in the rectal wall.
B)  It involves relaxation of the internal anal sphincter.
C)   It cannot be overridden by voluntary contraction of the external anal sphincter.
D)   It involves contraction of the sigmoid colon and rectum.

Question 7

Match the hormone(s), labelled a. through d., to the descriptions. (Options may be used more than once or not at all.)
a.both secretin and CCK
b.secretin
c.CCK
d.gastrin
-secretion inhibited by low pH

Accepted Answer

The answer of Match the hormone(s), labelled a. through d.,...

Question 8

Stimulation of the taste buds increases gastric secretions.

Accepted Answer

A) True 
 B)False

Question 9

Which of these factors does NOT affect gastric motility or emptying?

Accepted Answer

A)  increased fluidity
B)  presence of acid and fat in the stomach
C)   increased gastric volume
D)   vagal activity

Question 10

Which of these statements applies to bile salts?

Accepted Answer

A)  They aid fat digestion.
B)  They aid fat absorption through micelle formation.
C)   They are secreted into the bile.
D)   They aid fat digestion and absorption through micelle formation.

Question 11

Which statement does NOT describe cholecystokinin?

Accepted Answer

A)  It is secreted by the endocrine portion of the pancreas.
B)  It stimulates pancreatic enzyme secretion.
C)   It causes contraction of the gallbladder.
D)   It is secreted by the small intestine.

Question 12

Factors in the duodenum influence the rate of gastric emptying.

Accepted Answer

A) True 
 B)False

Question 13

What stimulates gallbladder contraction?

Accepted Answer

A)  CCK
B)  secretin
C)   sympathetic stimulation
D)   gastrin

Question 14

Which hormones act in the small intestine?

Accepted Answer

A)  secretin and cholecystokinin
B)  secretin and gastrin
C)   cholecystokinin and gastrin
D)   gastrin and GIP

Question 15

In general, sympathetic stimulation is excitatory to digestive activity.

Accepted Answer

A) True 
 B)False

Question 16

Which statement applies to the enteric nervous system?

Accepted Answer

A)  It includes the myenteric plexuses.
B)  It includes the submucosal plexuses.
C)   It includes vagal nerve efferent.
D)   It includes both myenteric and submucosal plexuses.

Question 17

A(n) ____________________ ulcer is an erosion of the stomach wall.

Accepted Answer

The answer of A(n) ____________________ ulcer is an erosion of...

Question 18

Defecation is a spinal reflex.

Accepted Answer

A) True 
 B)False

Question 19

The enterogastric reflex and enterogastrones inhibit gastric motility but stimulate gastric secretion.

Accepted Answer

A) True 
 B)False

Question 20

Secretin stimulates the pancreatic ____________________ cells to secrete ____________________, whereas CCK stimulates the pancreatic ____________________ cells to secrete ____________________.

Accepted Answer

The answer of Secretin stimulates the pancreatic ____________________ cells to...

Exam 14: The Urinary System

Match the digestive secretions, labelled a. through e., to the descriptions. (Options may be used more than once or not at all.) a.bile salts b.pepsin(ogen) c.amylase d.lipase e.trypsin(ogen) -carbohydrate digestion begins

Where is the pyloric sphincter located?

The rate of gastric emptying depends entirely on the volume and fluidity of gastric contents.

Which of the following substances is a precursor to an enzyme that functions in the stomach?

Digestive enzymes produced by the small intestine are not secreted into the lumen but act intracellularly.

Which statement does NOT correctly describe the defecation reflex?

Match the hormone(s), labelled a. through d., to the descriptions. (Options may be used more than once or not at all.) a.both secretin and CCK b.secretin c.CCK d.gastrin -secretion inhibited by low pH

Stimulation of the taste buds increases gastric secretions.

Which of these factors does NOT affect gastric motility or emptying?

Which of these statements applies to bile salts?

Which statement does NOT describe cholecystokinin?

Factors in the duodenum influence the rate of gastric emptying.

What stimulates gallbladder contraction?

Which hormones act in the small intestine?

In general, sympathetic stimulation is excitatory to digestive activity.

Which statement applies to the enteric nervous system?

A(n) ____________________ ulcer is an erosion of the stomach wall.

Defecation is a spinal reflex.

The enterogastric reflex and enterogastrones inhibit gastric motility but stimulate gastric secretion.

Secretin stimulates the pancreatic cells to secrete , whereas CCK stimulates the pancreatic cells to secrete .