Question 1

Chylomicrons are

Accepted Answer

A)  aggregations of triglycerides formed within intestinal epithelial cells and covered with a layer of lipoprotein, which renders them water-soluble. 
B)  aggregations of bile salts, monoglycerides, and free fatty acids. 
C)  small fat globules held apart by the action of bile salts. 
D)  secreted in the succus entericus. 
E)  digested by bacteria in the colon. 
A)  aggregations of triglycerides formed within intestinal epithelial cells and covered with a layer of lipoprotein, which renders them water-soluble. 
B)  aggregations of bile salts, monoglycerides, and free fatty acids. 
C)  small fat globules held apart by the action of bile salts. 
D)  secreted in the succus entericus. 
E)  digested by bacteria in the colon.

Question 2

Which vein carries blood into the liver from the digestive tract structures?

Accepted Answer

A)  inferior vena cava 
B)  superior vena cava 
C)  hepatic portal vein 
D)  hepatic vein 
E)  aorta 
A)  inferior vena cava 
B)  superior vena cava 
C)  hepatic portal vein 
D)  hepatic vein 
E)  aorta

Question 3

The parotid glands are one of three pairs of ____________________ glands.

Accepted Answer

The answer of The parotid glands are one of three...

Question 4

Hormones acting in the small intestine include

Accepted Answer

A)  secretin and cholecystokinin. 
B)  secretin and gastrin. 
C)  cholecystokinin and gastrin. 
D)  all of these answers. 
E)  none of these answers. 
A)  secretin and cholecystokinin. 
B)  secretin and gastrin. 
C)  cholecystokinin and gastrin. 
D)  all of these answers. 
E)  none of these answers.

Question 5

Indicate which hormone(s) is being described by writing the appropriate letter in the blank using the following answer code:
-Stimulated primarily by the presence of protein.

Accepted Answer

A) both secretin and CCK 
B) secretin 
C) CCK 
D) gastrin 
A) both secretin and CCK 
B) secretin 
C) CCK 
D) gastrin

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

The most potent stimulus for inhibiting gastric motility and emptying is ____________________.

Accepted Answer

fat in the

Question 8

Sympathetic stimulation inhibits salivary secretion.

Accepted Answer

A) True 
 B)False

Question 9

Which tissue layer provide for primary digestive motility?

Accepted Answer

A)  mucosa. 
B)  submucosa. 
C)  muscularis mucosa. 
D)  muscularis externa. 
E)  mesentery. 
A)  mucosa. 
B)  submucosa. 
C)  muscularis mucosa. 
D)  muscularis externa. 
E)  mesentery.

Question 10

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. 
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 11

Stomach acid

Accepted Answer

A)  is neutralized in the duodenum. 
B)  is neutralized with bicarbonate. 
C)  is neutralized by solutions secreted by the pancreas. 
D)  both (a) and (b) above. 
E)  all of these answers. 
A)  is neutralized in the duodenum. 
B)  is neutralized with bicarbonate. 
C)  is neutralized by solutions secreted by the pancreas. 
D)  both (a) and (b) above. 
E)  all of these answers.

Question 12

Binding of intrinsic factor with vitamin B12 triggers the receptor-mediated endocytosis of this complex to facilitate absorption.

Accepted Answer

A) True 
 B)False

Question 13

The ____________________ is a common passageway for both the digestive and respiratory systems.

Accepted Answer

The answer of The ____________________ is a common passageway for...

Question 14

The main sympathetic nerve supply to the digestive tract is the vagus.

Accepted Answer

A) True 
 B)False

Question 15

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

Accepted Answer

A)  gastroileal reflex. 
B)  distention of the stomach. 
C)  gastrin action. 
D)  both (a) and (b) above, 
E)  all of these answers. 
A)  gastroileal reflex. 
B)  distention of the stomach. 
C)  gastrin action. 
D)  both (a) and (b) above, 
E)  all of these answers.

Question 16

Epithelial cells are continually being shed from the villi because

Accepted Answer

A)  the intracellular enzymes digest important cellular constituents, causing the cells to disintegrate and slough. 
B)  the body needs a continual supply of protein derived from the digestion of these cells. 
C)  new cells are continually being produced in the crypts at the base of the villi and migrate upward. 
D)  acid entering the small intestine from the stomach constantly destroys the small intestinal lining, causing the cells to slough. 
E)  none of these answers. 
A)  the intracellular enzymes digest important cellular constituents, causing the cells to disintegrate and slough. 
B)  the body needs a continual supply of protein derived from the digestion of these cells. 
C)  new cells are continually being produced in the crypts at the base of the villi and migrate upward. 
D)  acid entering the small intestine from the stomach constantly destroys the small intestinal lining, causing the cells to slough. 
E)  none of these answers.

Question 17

Salivary amylase and the pancreatic enzymes are inactivated by acid.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following structures secrete mucus?

Accepted Answer

A)  salivary glands 
B)  esophagus 
C)  stomach 
D)  colon 
E)  all of these answers. 
A)  salivary glands 
B)  esophagus 
C)  stomach 
D)  colon 
E)  all of these answers.

Question 19

Pacemaker cells at the lower parts of the stomach generate slow-wave potentials that sweep up the stomach.

Accepted Answer

A) True 
 B)False

Question 20

The function of mixing movements is to promote digestion and facilitate absorption.

Accepted Answer

A) True 
 B)False

Chylomicrons are

Which vein carries blood into the liver from the digestive tract structures?

The parotid glands are one of three pairs of ____________________ glands.

Hormones acting in the small intestine include

Indicate which hormone(s) is being described by writing the appropriate letter in the blank using the following answer code: -Stimulated primarily by the presence of protein.

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

The most potent stimulus for inhibiting gastric motility and emptying is ____________________.

Sympathetic stimulation inhibits salivary secretion.

Which tissue layer provide for primary digestive motility?

The serosa is the

Stomach acid

Binding of intrinsic factor with vitamin B₁₂ triggers the receptor-mediated endocytosis of this complex to facilitate absorption.

The ____________________ is a common passageway for both the digestive and respiratory systems.

The main sympathetic nerve supply to the digestive tract is the vagus.

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

Epithelial cells are continually being shed from the villi because

Salivary amylase and the pancreatic enzymes are inactivated by acid.

Which of the following structures secrete mucus?

Pacemaker cells at the lower parts of the stomach generate slow-wave potentials that sweep up the stomach.

The function of mixing movements is to promote digestion and facilitate absorption.

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 and Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood and Body Defenses

The Respiratory System

The Urinary System

Fluid and Acid-Base Balance

Energy Balance and Temperature Regulation

The Endocrine System

The Reproductive System

Filters

Exam 15: The Digestive System

Chylomicrons are

Which vein carries blood into the liver from the digestive tract structures?

The parotid glands are one of three pairs of ____________________ glands.

Hormones acting in the small intestine include

Indicate which hormone(s) is being described by writing the appropriate letter in the blank using the following answer code: -Stimulated primarily by the presence of protein.

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

The most potent stimulus for inhibiting gastric motility and emptying is ____________________.

Sympathetic stimulation inhibits salivary secretion.

Which tissue layer provide for primary digestive motility?

The serosa is the

Stomach acid

Binding of intrinsic factor with vitamin B12 triggers the receptor-mediated endocytosis of this complex to facilitate absorption.

The ____________________ is a common passageway for both the digestive and respiratory systems.

The main sympathetic nerve supply to the digestive tract is the vagus.

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

Epithelial cells are continually being shed from the villi because

Salivary amylase and the pancreatic enzymes are inactivated by acid.

Which of the following structures secrete mucus?

Pacemaker cells at the lower parts of the stomach generate slow-wave potentials that sweep up the stomach.

The function of mixing movements is to promote digestion and facilitate absorption.

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 and Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood and Body Defenses

The Respiratory System

The Urinary System

Fluid and Acid-Base Balance

Energy Balance and Temperature Regulation

The Endocrine System

The Reproductive System

Filters

Binding of intrinsic factor with vitamin B₁₂ triggers the receptor-mediated endocytosis of this complex to facilitate absorption.