Question 1

Which of these statements describes chylomicrons

Accepted Answer

A) They are aggregations of triglycerides formed within intestinal epithelial cells and covered with a layer of lipoprotein. 
B) They are aggregations of bile salts, monoglycerides, and free fatty acids. 
C) They are small fat globules held apart by the action of bile salts. 
D) They are secreted in the succus entericus. 
A) They are aggregations of triglycerides formed within intestinal epithelial cells and covered with a layer of lipoprotein. 
B) They are aggregations of bile salts, monoglycerides, and free fatty acids. 
C) They are small fat globules held apart by the action of bile salts. 
D) They are secreted in the succus entericus.

Question 2

Match the digestive secretions, labelled a. through e., to the descriptions. (Options may be used more than once or not at all.)
-pancreatic enzyme that digests protein

Accepted Answer

A) bile salts 
B) pepsin(ogen) 
C) amylase 
D) lipase 
E) trypsin(ogen) 
A) bile salts 
B) pepsin(ogen) 
C) amylase 
D) lipase 
E) trypsin(ogen)

Question 3

Match the stimuli, labelled a. through d., with the descriptions. (Options may be used more than once or not at all.)
-stimulates secretion of CCK

Accepted Answer

A) fat in the duodenum 
B) acid in the duodenum 
C) acid in the stomach 
D) protein in the stomach 
A) fat in the duodenum 
B) acid in the duodenum 
C) acid in the stomach 
D) protein in the stomach

Question 4

Of the fluid entering the small intestine, what percentage is reabsorbed

Accepted Answer

A) 100 percent 
B) 95 percent 
C) 85 percent 
D) 50 percent 
A) 100 percent 
B) 95 percent 
C) 85 percent 
D) 50 percent

Question 5

The most potent stimulus for gastrin release is __________________.Gastrin, in turn, is a powerful stimulus for __________________________ secretion.The PGA is directly inhibited from releasing gastrin by __________________.

Accepted Answer

protein in the stoma

Question 6

Which of these substances is NOT secreted by the stomach in response to parasympathetic (acetylcholine) stimulation

Accepted Answer

A) pepsinogen 
B) HCl 
C) gastrin 
D) histamine 
A) pepsinogen 
B) HCl 
C) gastrin 
D) histamine

Question 7

Which of these statements does NOT apply to 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 oesophagus. 
C) It is a sequentially programmed, multiple response, all-or-none reflex. 
D) It is initiated by pressure of the bolus, which stimulates the swallowing centre. 
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 oesophagus. 
C) It is a sequentially programmed, multiple response, all-or-none reflex. 
D) It is initiated by pressure of the bolus, which stimulates the swallowing centre.

Question 8

Indicate the causes and effects of constipation and diarrhoea.

Accepted Answer

Constipation can be caused by a variety

Question 9

Match the hormones, labelled a. through e., with the actions listed.
-causes increased HCl production

Accepted Answer

A) gastrin 
B) secretin 
C) CCK 
D) gastric inhibitory peptide 
E) histamine 
A) gastrin 
B) secretin 
C) CCK 
D) gastric inhibitory peptide 
E) histamine

Question 10

Which of these statements does NOT pertain to digestive motility

Accepted Answer

A) It is accomplished by smooth muscle contractions only. 
B) It is accomplished by smooth and voluntary muscle contractions. 
C) It may be propulsive in nature. 
A) It is accomplished by smooth muscle contractions only. 
B) It is accomplished by smooth and voluntary muscle contractions. 
C) It may be propulsive in nature.

Question 11

What is the major stimulus for secretion of secretin

Accepted Answer

A) the sight and aroma of food 
B) entry of a bolus into the oesophagus 
C) distension of the stomach 
D) entry of acid chyme into the small intestine 
A) the sight and aroma of food 
B) entry of a bolus into the oesophagus 
C) distension of the stomach 
D) entry of acid chyme into the small intestine

Question 12

Protein digestion is initiated by salivary amylase.

Accepted Answer

A) True 
 B)False

Question 13

Which statement does NOT pertain to the intrinsic plexuses

Accepted Answer

A) The myenteric plexus is located in the submucosa. 
B) The plexuses innervate smooth muscle cells and exocrine and endocrine gland cells. 
C) The plexuses are influenced by extrinsic nerves. 
D) The plexuses coordinate local digestive tract activity. 
A) The myenteric plexus is located in the submucosa. 
B) The plexuses innervate smooth muscle cells and exocrine and endocrine gland cells. 
C) The plexuses are influenced by extrinsic nerves. 
D) The plexuses coordinate local digestive tract activity.

Question 14

Which of these statements does NOT apply to HCl secreted by the stomach

Accepted Answer

A) It inactivates salivary amylase. 
B) It establishes a high pH in the stomach. 
C) It activates pepsinogen. 
D) It is secreted by the parietal cells in the stomach. 
A) It inactivates salivary amylase. 
B) It establishes a high pH in the stomach. 
C) It activates pepsinogen. 
D) It is secreted by the parietal cells in the stomach.

Question 15

Which of the following is/are secreted by the parietal cells of the gastric mucosa

Accepted Answer

A) HCl only 
B) pepsinogen only 
C) both HCl and pepsinogen 
D) both HCl and intrinsic factor 
A) HCl only 
B) pepsinogen only 
C) both HCl and pepsinogen 
D) both HCl and intrinsic factor

Question 16

Bile salts are derivatives of cholesterol.

Accepted Answer

A) True 
 B)False

Question 17

The primary absorption of nutrients, water, and electrolytes takes place in the large intestine, converting chyme to fecal material.

Accepted Answer

A) True 
 B)False

Question 18

In general, sympathetic stimulation is excitatory to digestive activity.

Accepted Answer

A) True 
 B)False

Question 19

Match the descriptions, labelled a. through l., with the items listed.
-secretin

Accepted Answer

A) secretes NaHCO₃ 
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 
A) secretes NaHCO₃ 
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

Question 20

What is the digested product of milk sugar

Accepted Answer

A) glucose and fructose 
B) glucose and galactose 
C) sucrose and maltose 
D) maltose and galactose 
A) glucose and fructose 
B) glucose and galactose 
C) sucrose and maltose 
D) maltose and galactose

Which of these statements describes chylomicrons

Match the digestive secretions, labelled a. through e., to the descriptions. (Options may be used more than once or not at all.) -pancreatic enzyme that digests protein

Match the stimuli, labelled a. through d., with the descriptions. (Options may be used more than once or not at all.) -stimulates secretion of CCK

Of the fluid entering the small intestine, what percentage is reabsorbed

The most potent stimulus for gastrin release is .Gastrin, in turn, is a powerful stimulus for secretion.The PGA is directly inhibited from releasing gastrin by __.

Which of these substances is NOT secreted by the stomach in response to parasympathetic (acetylcholine) stimulation

Which of these statements does NOT apply to swallowing

Indicate the causes and effects of constipation and diarrhoea.

Match the hormones, labelled a. through e., with the actions listed. -causes increased HCl production

Which of these statements does NOT pertain to digestive motility

What is the major stimulus for secretion of secretin

Protein digestion is initiated by salivary amylase.

Which statement does NOT pertain to the intrinsic plexuses

Which of these statements does NOT apply to HCl secreted by the stomach

Which of the following is/are secreted by the parietal cells of the gastric mucosa

Bile salts are derivatives of cholesterol.

The primary absorption of nutrients, water, and electrolytes takes place in the large intestine, converting chyme to fecal material.

In general, sympathetic stimulation is excitatory to digestive activity.

Match the descriptions, labelled a. through l., with the items listed. -secretin

What is the digested product of milk sugar

The Foundation of Physiology

Cell Physiology

The Central Nervous System

The Peripheral Nervous System: Sensory, Autonomic, Somatic

Principles of Endocrinology: The Central Endocrine Glands

The Endocrine Glands

Muscle Physiology

Cardiac Physiology

Vascular Physiology

The Blood

Body Defences

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

Energy Balance and Temperature Regulation

The Reproductive System

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Exam 15: The Digestive System

Which of these statements describes chylomicrons

Match the digestive secretions, labelled a. through e., to the descriptions. (Options may be used more than once or not at all.) -pancreatic enzyme that digests protein

Match the stimuli, labelled a. through d., with the descriptions. (Options may be used more than once or not at all.) -stimulates secretion of CCK

Of the fluid entering the small intestine, what percentage is reabsorbed

The most potent stimulus for gastrin release is __________________.Gastrin, in turn, is a powerful stimulus for __________________________ secretion.The PGA is directly inhibited from releasing gastrin by __________________.

Which of these substances is NOT secreted by the stomach in response to parasympathetic (acetylcholine) stimulation

Which of these statements does NOT apply to swallowing

Indicate the causes and effects of constipation and diarrhoea.

Match the hormones, labelled a. through e., with the actions listed. -causes increased HCl production

Which of these statements does NOT pertain to digestive motility

What is the major stimulus for secretion of secretin

Protein digestion is initiated by salivary amylase.

Which statement does NOT pertain to the intrinsic plexuses

Which of these statements does NOT apply to HCl secreted by the stomach

Which of the following is/are secreted by the parietal cells of the gastric mucosa

Bile salts are derivatives of cholesterol.

The primary absorption of nutrients, water, and electrolytes takes place in the large intestine, converting chyme to fecal material.

In general, sympathetic stimulation is excitatory to digestive activity.

Match the descriptions, labelled a. through l., with the items listed. -secretin

What is the digested product of milk sugar

The Foundation of Physiology

Cell Physiology

The Central Nervous System

The Peripheral Nervous System: Sensory, Autonomic, Somatic

Principles of Endocrinology: The Central Endocrine Glands

The Endocrine Glands

Muscle Physiology

Cardiac Physiology

Vascular Physiology

The Blood

Body Defences

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

Energy Balance and Temperature Regulation

The Reproductive System

Filters

The most potent stimulus for gastrin release is .Gastrin, in turn, is a powerful stimulus for secretion.The PGA is directly inhibited from releasing gastrin by __.