Question 1

Gastric secretion occurs only when food is present in the stomach.

Accepted Answer

A) True 
 B)False  False

Question 2

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

Accepted Answer

A) True 
 B)False  True

Question 3

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

Accepted Answer

A) True 
 B)False  False

Question 4

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 5

The symptoms of constipation are due to

Accepted Answer

A)  inhibition of gastric emptying 
B)  absorption of toxins of bacterial origin from the colon 
C)  prolonged distention of the large intestine by the fecal mass 
D)  exhaustion due to frequent straining movements in an effort to initiate the defecation reflex 
E)  accumulation of large amounts of fluid in the colon 
A)  inhibition of gastric emptying 
B)  absorption of toxins of bacterial origin from the colon 
C)  prolonged distention of the large intestine by the fecal mass 
D)  exhaustion due to frequent straining movements in an effort to initiate the defecation reflex 
E)  accumulation of large amounts of fluid in the colon

Question 6

Complete each of the following statments.
The three modifications of the small intestine mucosa that greatly increase the surface area available for absorption are ____________________, ____________________, and ____________________.

Accepted Answer

circular f

Question 7

Which is the primary absorptive organ of the digestive system?

Accepted Answer

A)  salivary glands 
B)  oral cavity 
C)  stomach 
D)  small intestine 
E)  colon 
A)  salivary glands 
B)  oral cavity 
C)  stomach 
D)  small intestine 
E)  colon

Question 8

Absorption of which of the following is linked to active sodium absorption at the basolateral border of the epithelial cell?

Accepted Answer

A)  water 
B)  glucose 
C)  galactose 
D)  amino acids 
E)  all of these 
A)  water 
B)  glucose 
C)  galactose 
D)  amino acids 
E)  all of these

Question 9

Complete each of the following statments.
Gastric storage takes place in the ____________________ (what part?) of the stomach, whereas gastric mixing takes place in the ____________________.

Accepted Answer

The answer of Complete each of the following statments.
Gastric storage...

Question 10

Complete each of the following statments.
The ____________________ is a common passageway for both the digestive and respiratory systems.

Accepted Answer

The answer of Complete each of the following statments.
The ____________________...

Question 11

The intestinal feature responsible for increasing the absorptive surface area the most are

Accepted Answer

A)  circular folds 
B)  villi 
C)  microvilli 
D)  crypts 
E)  none of these 
A)  circular folds 
B)  villi 
C)  microvilli 
D)  crypts 
E)  none of these

Question 12

The stomach mucosa is thrown into folds known as villi.

Accepted Answer

A) True 
 B)False

Question 13

The main motility seen in the small intestine during digestion of a meal is the migrating motility complex.

Accepted Answer

A) True 
 B)False

Question 14

Stomach acid is neutralized

Accepted Answer

A)  in the duodenum 
B)  with trypsin 
C)  by solutions secreted from the antrum 
D)  in the duodenum and with trypsin 
E)  none of these 
A)  in the duodenum 
B)  with trypsin 
C)  by solutions secreted from the antrum 
D)  in the duodenum and with trypsin 
E)  none of these

Question 15

Complete each of the following statments.
A(n) ____________________ is an aggregation of bile salts and lecithin.

Accepted Answer

The answer of Complete each of the following statments.
A(n) ____________________...

Question 16

Segmentation

Accepted Answer

A)  is the primary motility in the small intestine during digestion of a meal 
B)  is both mixing and propulsive 
C)  refers to sequential ring-like contractions that sweep downward, creating a stripping motion that pushes the chyme forward 
D)  is the primary motility in the small intestine during digestion of a meal, and is both mixing and propulsive 
E)  all of these 
A)  is the primary motility in the small intestine during digestion of a meal 
B)  is both mixing and propulsive 
C)  refers to sequential ring-like contractions that sweep downward, creating a stripping motion that pushes the chyme forward 
D)  is the primary motility in the small intestine during digestion of a meal, and is both mixing and propulsive 
E)  all of these

Question 17

Bile acts on

Accepted Answer

A)  distention of the stomach 
B)  gastrin 
C)  carbohydrate in the stomach 
D)  fat in the duodenum 
E)  fat in the stomach 
A)  distention of the stomach 
B)  gastrin 
C)  carbohydrate in the stomach 
D)  fat in the duodenum 
E)  fat in the stomach

Question 18

Complete each of the following statments.
The ____________________ is the layer that lines the inside surface of the digestive tract.

Accepted Answer

The answer of Complete each of the following statments.
The ____________________...

Question 19

The gastroesophageal sphincter is normally closed to prevent

Accepted Answer

A)  air from entering the esophagus during breathing 
B)  gastric contents from refluxing into the esophagus 
C)  vomiting 
D)  esophageal leaking into the stomach 
E)  food from entering the pharynx 
A)  air from entering the esophagus during breathing 
B)  gastric contents from refluxing into the esophagus 
C)  vomiting 
D)  esophageal leaking into the stomach 
E)  food from entering the pharynx

Question 20

Alcohol can be absorbed by the stomach mucosa more quickly than by the small intestine mucosa.

Accepted Answer

A) True 
 B)False

Exam 16: A--The Digestive System

Gastric secretion occurs only when food is present in the stomach.

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

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

Chylomicrons are

The symptoms of constipation are due to

Complete each of the following statments. The three modifications of the small intestine mucosa that greatly increase the surface area available for absorption are ____________________, ____________________, and ____________________.

Which is the primary absorptive organ of the digestive system?

Absorption of which of the following is linked to active sodium absorption at the basolateral border of the epithelial cell?

Complete each of the following statments. Gastric storage takes place in the ____________________ (what part?) of the stomach, whereas gastric mixing takes place in the ____________________.

Complete each of the following statments. The ____________________ is a common passageway for both the digestive and respiratory systems.

The intestinal feature responsible for increasing the absorptive surface area the most are

The stomach mucosa is thrown into folds known as villi.

The main motility seen in the small intestine during digestion of a meal is the migrating motility complex.

Stomach acid is neutralized

Complete each of the following statments. A(n) ____________________ is an aggregation of bile salts and lecithin.

Segmentation

Bile acts on

Complete each of the following statments. The ____________________ is the layer that lines the inside surface of the digestive tract.

The gastroesophageal sphincter is normally closed to prevent

Alcohol can be absorbed by the stomach mucosa more quickly than by the small intestine mucosa.

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

A--The Central Nervous System

B--The Central Nervous System

A--The Peripheral Nervous System: Afferent Division; Special Senses

B--The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

A--Muscle Physiology

B--Muscle Physiology

A--Cardiac Physiology

B--Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

A--The Respiratory System

B--The Respiratory System

A--The Urinary System

B--The Urinary System

A--Fluid and Acid-Base Balance

B--Fluid and Acid-Base Balance

B--The Digestive System

Energy Balance and Temperature Regulation

A--Principles of Endocrinology: the Central Endocrine Glands

B--Principles of Endocrinology: the Central Endocrine Glands

A--The Peripheral Endocrine Glands

B--The Peripheral Endocrine Glands

A--The Reproductive System

B--The Reproductive System

Filters

Complete each of the following statments. The three modifications of the small intestine mucosa that greatly increase the surface area available for absorption are , , and .

Complete each of the following statments. Gastric storage takes place in the (what part?) of the stomach, whereas gastric mixing takes place in the .