Question 1

Which of these statements correctly describes the serosa?

Accepted Answer

A) It is the abdominal cavity containing the stomach. 
B) It is the blood supply to the stomach. 
C)  It is the inner lining of the digestive tract. 
D)  It is the outer connective tissue covering of the digestive tract. 
A) It is the abdominal cavity containing the stomach. 
B) It is the blood supply to the stomach. 
C)  It is the inner lining of the digestive tract. 
D)  It is the outer connective tissue covering of the digestive tract.

Question 2

What is/are absorbed by receptor-mediated endocytosis in the terminal ileum?

Accepted Answer

A) fatty acids and monoglycerides 
B) bile 
C)  vitamin B12 
D)  amino acids 
A) fatty acids and monoglycerides 
B) bile 
C)  vitamin B12 
D)  amino acids

Question 3

Match the digestive enzymes, labelled a. through d., with their correct characteristics.
a.amylase
b.trypsin
c.chymotrypsin
d.lipase
-activation initiated by trypsin

Accepted Answer

The answer of Match the digestive enzymes, labelled a. through...

Question 4

What does pepsinogen do after it has been activated?

Accepted Answer

A) It autocatalytically activates more pepsinogen. 
B) It activates the pancreatic proteolytic enzymes in the duodenal lumen after gastric emptying has occurred. 
C)  It inhibits the pyloric gland area in a negative-feedback fashion. 
D)  It inhibits the secretion of HCl. 
A) It autocatalytically activates more pepsinogen. 
B) It activates the pancreatic proteolytic enzymes in the duodenal lumen after gastric emptying has occurred. 
C)  It inhibits the pyloric gland area in a negative-feedback fashion. 
D)  It inhibits the secretion of HCl.

Question 5

Both parasympathetic and sympathetic stimulation increase salivary secretion, contrary to the usual antagonistic activity of these two components of the autonomic nervous system.

Accepted Answer

A) True 
 B)False

Question 6

The ileocecal juncture serves as a barrier to prevent bacteria-laden contents of the large intestine from contaminating the small intestine.

Accepted Answer

A) True 
 B)False

Question 7

Both amino acids and glucose are absorbed by secondary active transport by the small intestinal epithelial cells.

Accepted Answer

A) True 
 B)False

Question 8

Gastric secretion does not begin until the arrival of food in the stomach.

Accepted Answer

A) True 
 B)False

Question 9

The primary wave of peristalsis in the esophagus is initiated by the ____________________. If this primary wave fails to push the bolus to the stomach, a secondary peristaltic wave is initiated by the ____________________.

Accepted Answer

swallowing

Question 10

Match the control mechanisms, labelled a. through d., with the characteristics. (Options may be used more than once or not at all.)
a.autonomous smooth muscle function
b.extrinsic (autonomic) nerves
c.hormones
d.intrinsic nerve plexuses
-responsible for coordinating local activity within the digestive tract

Accepted Answer

The answer of Match the control mechanisms, labelled a. through...

Question 11

The liver receives venous blood coming directly from the digestive tract, and arterial blood coming from the aorta.

Accepted Answer

A) True 
 B)False

Question 12

Excessive small intestinal motility can lead to constipation because there is less time for absorption to take place.

Accepted Answer

A) True 
 B)False

Question 13

Intrinsic factor is necessary for the absorption of vitamin B12.

Accepted Answer

A) True 
 B)False

Question 14

Which statement accurately describes chymotrypsinogen?

Accepted Answer

A) It is activated by enterokinase. 
B) Once activated, it is involved in protein digestion. 
C)  It is secreted by the endocrine pancreas. 
D)  It hydrolyzes starches and glycogen. 
A) It is activated by enterokinase. 
B) Once activated, it is involved in protein digestion. 
C)  It is secreted by the endocrine pancreas. 
D)  It hydrolyzes starches and glycogen.

Question 15

The extent of absorption of the electrolytes ____________________ and ____________________ is regulated depending on the body's needs.

Accepted Answer

iron; calc

Question 16

Bile salts are derivatives of cholesterol.

Accepted Answer

A) True 
 B)False

Question 17

Considerable vitamin absorption occurs passively in the stomach.

Accepted Answer

A) True 
 B)False

Question 18

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)
-gastric enzyme that digests protein

Accepted Answer

The answer of Match the digestive secretions, labelled a. through...

Question 19

After food has been chewed and mixed with salivary secretion, it is referred to as chyme.

Accepted Answer

A) True 
 B)False

Question 20

Which of these factors is the most potent stimulus for inhibition of gastric motility?

Accepted Answer

A) fat in the duodenum 
B) acid in the duodenum 
C)  acid in the stomach 
D)  distention of the stomach 
A) fat in the duodenum 
B) acid in the duodenum 
C)  acid in the stomach 
D)  distention of the stomach

Which of these statements correctly describes the serosa?

What is/are absorbed by receptor-mediated endocytosis in the terminal ileum?

Match the digestive enzymes, labelled a. through d., with their correct characteristics. a.amylase b.trypsin c.chymotrypsin d.lipase -activation initiated by trypsin

What does pepsinogen do after it has been activated?

Both parasympathetic and sympathetic stimulation increase salivary secretion, contrary to the usual antagonistic activity of these two components of the autonomic nervous system.

The ileocecal juncture serves as a barrier to prevent bacteria-laden contents of the large intestine from contaminating the small intestine.

Both amino acids and glucose are absorbed by secondary active transport by the small intestinal epithelial cells.

Gastric secretion does not begin until the arrival of food in the stomach.

The primary wave of peristalsis in the esophagus is initiated by the . If this primary wave fails to push the bolus to the stomach, a secondary peristaltic wave is initiated by the .

The liver receives venous blood coming directly from the digestive tract, and arterial blood coming from the aorta.

Excessive small intestinal motility can lead to constipation because there is less time for absorption to take place.

Intrinsic factor is necessary for the absorption of vitamin B₁₂.

Which statement accurately describes chymotrypsinogen?

The extent of absorption of the electrolytes and is regulated depending on the body's needs.

Bile salts are derivatives of cholesterol.

Considerable vitamin absorption occurs passively in the stomach.

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) -gastric enzyme that digests protein

After food has been chewed and mixed with salivary secretion, it is referred to as chyme.

Which of these factors is the most potent stimulus for inhibition of gastric motility?

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

The Respiratory System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

Filters

Exam 14: The Urinary System

Which of these statements correctly describes the serosa?

What is/are absorbed by receptor-mediated endocytosis in the terminal ileum?

Match the digestive enzymes, labelled a. through d., with their correct characteristics. a.amylase b.trypsin c.chymotrypsin d.lipase -activation initiated by trypsin

What does pepsinogen do after it has been activated?

Both parasympathetic and sympathetic stimulation increase salivary secretion, contrary to the usual antagonistic activity of these two components of the autonomic nervous system.

The ileocecal juncture serves as a barrier to prevent bacteria-laden contents of the large intestine from contaminating the small intestine.

Both amino acids and glucose are absorbed by secondary active transport by the small intestinal epithelial cells.

Gastric secretion does not begin until the arrival of food in the stomach.

The primary wave of peristalsis in the esophagus is initiated by the ____________________. If this primary wave fails to push the bolus to the stomach, a secondary peristaltic wave is initiated by the ____________________.

The liver receives venous blood coming directly from the digestive tract, and arterial blood coming from the aorta.

Excessive small intestinal motility can lead to constipation because there is less time for absorption to take place.

Intrinsic factor is necessary for the absorption of vitamin B12.

Which statement accurately describes chymotrypsinogen?

The extent of absorption of the electrolytes ____________________ and ____________________ is regulated depending on the body's needs.

Bile salts are derivatives of cholesterol.

Considerable vitamin absorption occurs passively in the stomach.

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) -gastric enzyme that digests protein

After food has been chewed and mixed with salivary secretion, it is referred to as chyme.

Which of these factors is the most potent stimulus for inhibition of gastric motility?

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

The Respiratory System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

Filters

The primary wave of peristalsis in the esophagus is initiated by the . If this primary wave fails to push the bolus to the stomach, a secondary peristaltic wave is initiated by the .

Intrinsic factor is necessary for the absorption of vitamin B₁₂.

The extent of absorption of the electrolytes and is regulated depending on the body's needs.