Question 1

Which statement correctly describes absorptive processes?

Accepted Answer

A) Carbohydrate is absorbed by active transport in the small intestine and enters the blood. 
B) Fat is absorbed by active transport in the small intestine and enters the lymph. 
C)  Protein is absorbed primarily by pinocytosis. 
D)  The water-soluble vitamins are carried in the micelles, which are water soluble and therefore easily absorbed anywhere along the digestive system. 
A) Carbohydrate is absorbed by active transport in the small intestine and enters the blood. 
B) Fat is absorbed by active transport in the small intestine and enters the lymph. 
C)  Protein is absorbed primarily by pinocytosis. 
D)  The water-soluble vitamins are carried in the micelles, which are water soluble and therefore easily absorbed anywhere along the digestive system.

Question 2

The intrinsic nerve plexuses innervate smooth muscle and exocrine gland cells, but do not influence endocrine gland cells within the digestive system.

Accepted Answer

A) True 
 B)False

Question 3

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
-pathway by which factors outside the digestive system can influence digestion

Accepted Answer

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

Question 4

Match the descriptions, labelled a. through l., with the items listed.
a.secretes NaHCOS1U1B13S1U1B0
b.enzyme for protein digestion secreted by pancreas
c.activates pepsinogen
d.enzyme for fat digestion
e.functions inside brush border
f.secretes gastrin
g.stimulates parietal and chief cells
h.enzyme for carbohydrate digestion that functions primarily in the body of the stomach
i.secreted by chief cells
j.secretes pancreatic enzymes
k.secreted by duodenal cells in response to the presence of acid
l.stimulates pancreatic acinar cells
-pepsin(ogen)

Accepted Answer

The answer of Match the descriptions, labelled a. through l.,...

Question 5

Match the descriptions, labelled a. through l., with the items listed.
a.secretes NaHCOS1U1B13S1U1B0
b.enzyme for protein digestion secreted by pancreas
c.activates pepsinogen
d.enzyme for fat digestion
e.functions inside brush border
f.secretes gastrin
g.stimulates parietal and chief cells
h.enzyme for carbohydrate digestion that functions primarily in the body of the stomach
i.secreted by chief cells
j.secretes pancreatic enzymes
k.secreted by duodenal cells in response to the presence of acid
l.stimulates pancreatic acinar cells
-lipase

Accepted Answer

The answer of Match the descriptions, labelled a. through l.,...

Question 6

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)
-fat digestion begins

Accepted Answer

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

Question 7

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 8

How long does it take for an epithelial cell to migrate from the base of the villi to the tip?

Accepted Answer

A) three hours 
B) one day 
C)  three days 
D)  three months 
A) three hours 
B) one day 
C)  three days 
D)  three months

Question 9

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
-travel via the blood to alter digestive motility and secretion

Accepted Answer

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

Question 10

Bile is secreted continuously by the gallbladder.

Accepted Answer

A) True 
 B)False

Question 11

Gastric mixing takes place primarily in the antrum of the stomach.

Accepted Answer

A) True 
 B)False

Question 12

Match the descriptions, labelled a. through l., with the items listed.
a.secretes NaHCOS1U1B13S1U1B0
b.enzyme for protein digestion secreted by pancreas
c.activates pepsinogen
d.enzyme for fat digestion
e.functions inside brush border
f.secretes gastrin
g.stimulates parietal and chief cells
h.enzyme for carbohydrate digestion that functions primarily in the body of the stomach
i.secreted by chief cells
j.secretes pancreatic enzymes
k.secreted by duodenal cells in response to the presence of acid
l.stimulates pancreatic acinar cells
-gastrin

Accepted Answer

The answer of Match the descriptions, labelled a. through l.,...

Question 13

Sodium can be absorbed both actively and passively.

Accepted Answer

A) True 
 B)False

Question 14

Chylomicrons are aggregates of bile salts, monoglycerides, and free fatty acids.

Accepted Answer

A) True 
 B)False

Question 15

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
-stimulate(s) pancreatic digestive enzyme secretion

Accepted Answer

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

Question 16

The main function of the ileocecal valve/sphincter is to prevent small intestinal contents from entering the large intestine before digestion of food is completed.

Accepted Answer

A) True 
 B)False

Question 17

Which of these statements does NOT describe swallowing?

Accepted Answer

A) It includes the movement of the bolus from the mouth to the stomach. 
B) It includes only the movement of the bolus from the mouth to the esophagus. 
C)  It is a sequentially programmed, multiple response, all-or-none reflex. 
A) It includes the movement of the bolus from the mouth to the stomach. 
B) It includes only the movement of the bolus from the mouth to the esophagus. 
C)  It is a sequentially programmed, multiple response, all-or-none reflex.

Question 18

Vomiting is initiated by stimulation of chemoreceptors in the medulla.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following is NOT the function of aqueous NaHCO3 secreted by the pancreas into the duodenum?

Accepted Answer

A) to neutralize acidic gastric contents emptied into the duodenum 
B) to prevent irritation of the duodenal mucosa 
C)  to actively digest fat molecules into fatty acids 
D)  to optimize the function of pancreatic enzymes 
A) to neutralize acidic gastric contents emptied into the duodenum 
B) to prevent irritation of the duodenal mucosa 
C)  to actively digest fat molecules into fatty acids 
D)  to optimize the function of pancreatic enzymes

Question 20

Which statement does NOT correctly describe control of pancreatic secretion?

Accepted Answer

A) Gastrin stimulates release of neutralization solution. 
B) CCK stimulates release of enzymes. 
C)  Secretin stimulates release of bicarbonate. 
D)  A small secretion occurs during the cephalic phase of digestion. 
A) Gastrin stimulates release of neutralization solution. 
B) CCK stimulates release of enzymes. 
C)  Secretin stimulates release of bicarbonate. 
D)  A small secretion occurs during the cephalic phase of digestion.

Which statement correctly describes absorptive processes?

The intrinsic nerve plexuses innervate smooth muscle and exocrine gland cells, but do not influence endocrine gland cells within the digestive 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) -fat digestion begins

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.

How long does it take for an epithelial cell to migrate from the base of the villi to the tip?

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 -travel via the blood to alter digestive motility and secretion

Bile is secreted continuously by the gallbladder.

Gastric mixing takes place primarily in the antrum of the stomach.

Sodium can be absorbed both actively and passively.

Chylomicrons are aggregates of bile salts, monoglycerides, and free fatty acids.

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 -stimulate(s) pancreatic digestive enzyme secretion

The main function of the ileocecal valve/sphincter is to prevent small intestinal contents from entering the large intestine before digestion of food is completed.

Which of these statements does NOT describe swallowing?

Vomiting is initiated by stimulation of chemoreceptors in the medulla.

Which of the following is NOT the function of aqueous NaHCO₃ secreted by the pancreas into the duodenum?

Which statement does NOT correctly describe control of pancreatic secretion?

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 statement correctly describes absorptive processes?

The intrinsic nerve plexuses innervate smooth muscle and exocrine gland cells, but do not influence endocrine gland cells within the digestive 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) -fat digestion begins

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.

How long does it take for an epithelial cell to migrate from the base of the villi to the tip?

Bile is secreted continuously by the gallbladder.

Gastric mixing takes place primarily in the antrum of the stomach.

Sodium can be absorbed both actively and passively.

Chylomicrons are aggregates of bile salts, monoglycerides, and free fatty acids.

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 -stimulate(s) pancreatic digestive enzyme secretion

The main function of the ileocecal valve/sphincter is to prevent small intestinal contents from entering the large intestine before digestion of food is completed.

Which of these statements does NOT describe swallowing?

Vomiting is initiated by stimulation of chemoreceptors in the medulla.

Which of the following is NOT the function of aqueous NaHCO3 secreted by the pancreas into the duodenum?

Which statement does NOT correctly describe control of pancreatic secretion?

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

Which of the following is NOT the function of aqueous NaHCO₃ secreted by the pancreas into the duodenum?