Question 1

____________________ contractions are responsible for mixing the colonic contents, whereas ____________________ periodically propel the contents long distances.

Accepted Answer

Haustral,

Question 2

As the gastric pH falls very low, the pyloric gland area is inhibited.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following substances is absorbed by the stomach?

Accepted Answer

A) glucose 
B) caffeine 
C) aspirin 
D) amino acids 
E) fatty acids 
A) glucose 
B) caffeine 
C) aspirin 
D) amino acids 
E) fatty acids

Question 4

Which statement about the colon is incorrect?

Accepted Answer

A) Absorption of salt and water converts the colonic contents into fecal material. 
B) Colonic bacteria digest cellulose for their own growth and reproduction. 
C) Mass movements pack feces into the rectum and stimulate stretch receptors to cause contraction of both anal sphincters, which prevent defecation until an opportune time. 
D) No digestive enzymes are secreted by the colon. 
E) Haustral contractions are a type of mixing motility. 
A) Absorption of salt and water converts the colonic contents into fecal material. 
B) Colonic bacteria digest cellulose for their own growth and reproduction. 
C) Mass movements pack feces into the rectum and stimulate stretch receptors to cause contraction of both anal sphincters, which prevent defecation until an opportune time. 
D) No digestive enzymes are secreted by the colon. 
E) Haustral contractions are a type of mixing motility.

Question 5

Which of the following stimulates gallbladder contraction?

Accepted Answer

A) CCK 
B) secretin 
C) sympathetic stimulation 
D) a and b 
E) a and c 
A) CCK 
B) secretin 
C) sympathetic stimulation 
D) a and b 
E) a and c

Question 6

Which of the following 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 
E) hypertonicity of the duodenal contents 
A) fat in the duodenum 
B) acid in the duodenum 
C) acid in the stomach 
D) distention of the stomach 
E) hypertonicity of the duodenal contents

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

Which statement is incorrect?

Accepted Answer

A) Trypsinogen is secreted in an inactive form. 
B) Pancreatic amylase digests carbohydrates. 
C) Pancreatic lipase is responsible for triglyceride digestion. 
D) Except for trypsinogen, other proteolytic enzymes are secreted in active form. 
E) Trypsinogen is activated by enterokinase. 
A) Trypsinogen is secreted in an inactive form. 
B) Pancreatic amylase digests carbohydrates. 
C) Pancreatic lipase is responsible for triglyceride digestion. 
D) Except for trypsinogen, other proteolytic enzymes are secreted in active form. 
E) Trypsinogen is activated by enterokinase.

Question 9

Worn-out red blood cells are destroyed and the hemoglobin is degraded to a yellow pigment known as ____________________, which is excreted into the bile.

Accepted Answer

The answer of Worn-out red blood cells are destroyed and...

Question 10

HCl activates pepsinogen.

Accepted Answer

A) True 
 B)False

Question 11

Protein digestion is initiated by salivary amylase.

Accepted Answer

A) True 
 B)False

Question 12

Match control mechanism with characteristic.
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 control mechanism with characteristic.
a.autonomous smooth muscle...

Question 13

Indicate which digestive secretion is being described in each question by writing the appropriate letter in the blank using the following answer code
.
a.bile salts
b.pepsin(ogen)
c.amylase
d.lipase
e.trypsin(ogen)
-Activated by enterokinase

Accepted Answer

The answer of Indicate which digestive secretion is being described...

Question 14

Which of the following organs is not a digestive tract organ?

Accepted Answer

A) esophagus 
B) stomach 
C) pancreas 
D) small intestine 
E) large intestine 
A) esophagus 
B) stomach 
C) pancreas 
D) small intestine 
E) large intestine

Question 15

Which statement about chymotrypsinogen is correct?

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) All of the above 
E) None of these 
A) It is activated by enterokinase. 
B) Once activated, it is involved in protein digestion. 
C) It is secreted by the endocrine pancreas. 
D) All of the above 
E) None of these

Question 16

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

Accepted Answer

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

Question 17

The pyloric gland area of the stomach antrum

Accepted Answer

A) secretes gastrin 
B) is inhibited by acid 
C) is stimulated by the presence of glucose 
D) contains mucous cells 
E) secretes pepsinogen 
A) secretes gastrin 
B) is inhibited by acid 
C) is stimulated by the presence of glucose 
D) contains mucous cells 
E) secretes pepsinogen

Question 18

Pernicious anemia can occur when

Accepted Answer

A) the stomach has been removed 
B) the terminal ileum has been removed 
C) there is a deficiency of intrinsic factor 
D) all of the above occur 
E) only a and b occur 
A) the stomach has been removed 
B) the terminal ileum has been removed 
C) there is a deficiency of intrinsic factor 
D) all of the above occur 
E) only a and b occur

Question 19

Indicate the stimulus for the item in question by writing the appropriate letter in the blank using the following answer code.
a.fat in the duodenum
b.acid in the duodenum
c.acid in the stomach
d.protein in the stomach
-Most potent stimulus for inhibition of gastric motility

Accepted Answer

The answer of Indicate the stimulus for the item in...

Question 20

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

Accepted Answer

A) True 
 B)False

contractions are responsible for mixing the colonic contents, whereas periodically propel the contents long distances.

As the gastric pH falls very low, the pyloric gland area is inhibited.

Which of the following substances is absorbed by the stomach?

Which statement about the colon is incorrect?

Which of the following stimulates gallbladder contraction?

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

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

Which statement is incorrect?

Worn-out red blood cells are destroyed and the hemoglobin is degraded to a yellow pigment known as ____________________, which is excreted into the bile.

HCl activates pepsinogen.

Protein digestion is initiated by salivary amylase.

Match control mechanism with characteristic. a.autonomous smooth muscle function b.extrinsic (autonomic) nerves c.hormones d.intrinsic nerve plexuses -Responsible for coordinating local activity within the digestive tract

Indicate which digestive secretion is being described in each question by writing the appropriate letter in the blank using the following answer code . a.bile salts b.pepsin(ogen) c.amylase d.lipase e.trypsin(ogen) -Activated by enterokinase

Which of the following organs is not a digestive tract organ?

Which statement about chymotrypsinogen is correct?

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

The pyloric gland area of the stomach antrum

Pernicious anemia can occur when

Indicate the stimulus for the item in question by writing the appropriate letter in the blank using the following answer code. a.fat in the duodenum b.acid in the duodenum c.acid in the stomach d.protein in the stomach -Most potent stimulus for inhibition of gastric motility

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

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

The Urinary System

Fluid and Acid-Base Balance

Energy Balance and Temperature Regulation

Principles of Endocrinology: the Central Endocrine Glands

The Peripheral Endocrine Glands

The Reproductive System

Filters

Exam 16: The Digestive System

____________________ contractions are responsible for mixing the colonic contents, whereas ____________________ periodically propel the contents long distances.

As the gastric pH falls very low, the pyloric gland area is inhibited.

Which of the following substances is absorbed by the stomach?

Which statement about the colon is incorrect?

Which of the following stimulates gallbladder contraction?

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

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

Which statement is incorrect?

Worn-out red blood cells are destroyed and the hemoglobin is degraded to a yellow pigment known as ____________________, which is excreted into the bile.

HCl activates pepsinogen.

Protein digestion is initiated by salivary amylase.

Match control mechanism with characteristic. a.autonomous smooth muscle function b.extrinsic (autonomic) nerves c.hormones d.intrinsic nerve plexuses -Responsible for coordinating local activity within the digestive tract

Indicate which digestive secretion is being described in each question by writing the appropriate letter in the blank using the following answer code . a.bile salts b.pepsin(ogen) c.amylase d.lipase e.trypsin(ogen) -Activated by enterokinase

Which of the following organs is not a digestive tract organ?

Which statement about chymotrypsinogen is correct?

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

The pyloric gland area of the stomach antrum

Pernicious anemia can occur when

Indicate the stimulus for the item in question by writing the appropriate letter in the blank using the following answer code. a.fat in the duodenum b.acid in the duodenum c.acid in the stomach d.protein in the stomach -Most potent stimulus for inhibition of gastric motility

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

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

The Urinary System

Fluid and Acid-Base Balance

Energy Balance and Temperature Regulation

Principles of Endocrinology: the Central Endocrine Glands

The Peripheral Endocrine Glands

The Reproductive System

Filters

contractions are responsible for mixing the colonic contents, whereas periodically propel the contents long distances.