Question 1

Contraction of the ________ alters the surface area by moving villi.

Accepted Answer

A)  mucosa 
B)  submucosa 
C)  submucosal plexus 
D)  muscularis mucosae 
E)  adventitia 
A)  mucosa 
B)  submucosa 
C)  submucosal plexus 
D)  muscularis mucosae 
E)  adventitia

Question 2

Name two functions of cholecystokinin.

Accepted Answer

Enhances satiety, stimulates g

Question 3

The motor activity of the muscularis externa is controlled by the

Accepted Answer

A)  submucosal plexus. 
B)  myenteric plexus. 
C)  migrating motor complex. 
D)  extrinsic neurons. 
E)  motilin. 
A)  submucosal plexus. 
B)  myenteric plexus. 
C)  migrating motor complex. 
D)  extrinsic neurons. 
E)  motilin.

Question 4

Read the following scenario and use what you know to choose the best answer.Digestion of an unlabeled carbohydrate results in a surge in the observed amounts of the monosaccharides glucose and galactose.Which of the following choices is most likely to be the original, unlabeled carbohydrate?

Accepted Answer

A)  sucrose 
B)  maltose 
C)  lactose 
D)  cellulose 
E)  glycogen 
A)  sucrose 
B)  maltose 
C)  lactose 
D)  cellulose 
E)  glycogen

Question 5

Feedforward reflexes are also ________ reflexes.

Accepted Answer

A)  medium 
B)  short 
C)  emotional 
D)  cephalic 
A)  medium 
B)  short 
C)  emotional 
D)  cephalic

Question 6

________ is intestinal gas produced by bacteria in the colon during the metabolism of indigestible carbohydrates.

Accepted Answer

A)  Flatus 
B)  Defecation 
C)  Haustra 
D)  Tenia Coli 
A)  Flatus 
B)  Defecation 
C)  Haustra 
D)  Tenia Coli

Question 7

Match each product with the cell or region that secretes or contains it.
-parietal cells

Accepted Answer

A) enzymes 
B) HCl 
C) HCO₃⁻ 
D) mucus 
E) more than one of these 
A) enzymes 
B) HCl 
C) HCO₃⁻ 
D) mucus 
E) more than one of these

Question 8

Chief cells secrete

Accepted Answer

A)  pepsinogen. 
B)  gastrin. 
C)  mucus. 
D)  hydrochloric acid. 
E)  intrinsic factor. 
A)  pepsinogen. 
B)  gastrin. 
C)  mucus. 
D)  hydrochloric acid. 
E)  intrinsic factor.

Question 9

A blockage of the ducts from the parotid glands would

Accepted Answer

A)  result in the production of less viscous saliva. 
B)  impair the lubricating properties of saliva. 
C)  interfere with carbohydrate digestion in the mouth. 
D)  eliminate the sense of taste. 
E)  Cause all of these effects. 
A)  result in the production of less viscous saliva. 
B)  impair the lubricating properties of saliva. 
C)  interfere with carbohydrate digestion in the mouth. 
D)  eliminate the sense of taste. 
E)  Cause all of these effects.

Question 10

Slow waves are

Accepted Answer

A)  cycles of smooth muscle contraction and relaxation. 
B)  cycles of depolarization and repolarization. 
C)  reflexes that originate and are integrated in the enteric nervous system. 
D)  peristaltic contractions. 
E)  segmental contractions. 
A)  cycles of smooth muscle contraction and relaxation. 
B)  cycles of depolarization and repolarization. 
C)  reflexes that originate and are integrated in the enteric nervous system. 
D)  peristaltic contractions. 
E)  segmental contractions.

Question 11

Which of the following statements is True?

Accepted Answer

A)  A basolateral GLUT5 transporter moves glucose out of the intestinal epithelial cell. 
B)  Fructose moves across the apical membrane by active transport. 
C)  Glucose and galactose use different transporters in absorption. 
D)  Glucose and galactose absorption uses an apical Na⁺-glucose SGLT symporter. 
E)  None of the statements are True. 
A)  A basolateral GLUT5 transporter moves glucose out of the intestinal epithelial cell. 
B)  Fructose moves across the apical membrane by active transport. 
C)  Glucose and galactose use different transporters in absorption. 
D)  Glucose and galactose absorption uses an apical Na⁺-glucose SGLT symporter. 
E)  None of the statements are True.

Question 12

Match the structure or compound to its function.
-blocks cholesterol absorption

Accepted Answer

A) ezetimibe 
B) ferroportin 
C) hepcidin 
D) DMT1 
E) NPC1L1 
A) ezetimibe 
B) ferroportin 
C) hepcidin 
D) DMT1 
E) NPC1L1

Question 13

Cody has always carefully controlled her caloric intake, and is lean.During her unplanned pregnancy, she continued to eat the same, hoping that taking prenatal vitamins and minerals would ensure that her fetus would grow normally.Her only complication during pregnancy was persistent constipation and consequent hemorrhoids.She gained only the minimum weight suggested by her doctor, and delivered a healthy, full-term infant; her pre-pregnancy weight was rapidly reestablished.Propose an explanation for how she managed to gain enough weight, did not violate the law of conservation of mass, and for her only complication.What does this suggest about "eating for two" that some pregnant women do?

Accepted Answer

She must have inefficiently absorbed cal

Question 14

The myenteric plexus is

Accepted Answer

A)  a layer of circular smooth muscle. 
B)  a layer of longitudinal smooth muscle. 
C)  a network of neurons. 
D)  the mucus secreting layer of the digestive tract. 
E)  primarily composed of connective tissue. 
A)  a layer of circular smooth muscle. 
B)  a layer of longitudinal smooth muscle. 
C)  a network of neurons. 
D)  the mucus secreting layer of the digestive tract. 
E)  primarily composed of connective tissue.

Question 15

Peyer's patches are characteristic of the

Accepted Answer

A)  stomach. 
B)  esophagus. 
C)  pancreas. 
D)  intestine. 
E)  colon. 
A)  stomach. 
B)  esophagus. 
C)  pancreas. 
D)  intestine. 
E)  colon.

Question 16

Proteins must first be enzymatically degraded to single amino acids before entering the capillaries of the hepatic portal system.Is this True or False? What is the significance of this? Is absorption of carbohydrates and lipids restricted to monomers? Explain.

Accepted Answer

A) True 
 B)False

Question 17

Match the structure to its function.
-Protein digestion is completed here.

Accepted Answer

A) mouth 
B) stomach 
C) rectum 
D) small intestine 
E) large intestine 
A) mouth 
B) stomach 
C) rectum 
D) small intestine 
E) large intestine

Question 18

Match the following structures with the appropriate description.
-located at the ventral end of the cecum

Accepted Answer

A) appendix 
B) colon 
C) duodenum 
D) ileum 
E) jejunum 
A) appendix 
B) colon 
C) duodenum 
D) ileum 
E) jejunum

Question 19

Bile is produced in the ________ and stored in the ________.

Accepted Answer

A)  gallbladder, liver 
B)  liver, gallbladder 
C)  pancreas, hepatocytes 
D)  hepatocytes, pancreas 
A)  gallbladder, liver 
B)  liver, gallbladder 
C)  pancreas, hepatocytes 
D)  hepatocytes, pancreas

Question 20

In the digestive system, HCl is released by ________, whereas HCO₃⁻ is secreted primarily from the ________.

Accepted Answer

A)  parietal cells of the stomach, pancreas 
B)  the pancreas, parietal cells of the stomach 
C)  parietal cells of the stomach, liver 
D)  the liver, parietal cells of the stomach 
A)  parietal cells of the stomach, pancreas 
B)  the pancreas, parietal cells of the stomach 
C)  parietal cells of the stomach, liver 
D)  the liver, parietal cells of the stomach

Exam 21: The Digestive System

Contraction of the ________ alters the surface area by moving villi.

Name two functions of cholecystokinin.

The motor activity of the muscularis externa is controlled by the

Read the following scenario and use what you know to choose the best answer.Digestion of an unlabeled carbohydrate results in a surge in the observed amounts of the monosaccharides glucose and galactose.Which of the following choices is most likely to be the original, unlabeled carbohydrate?

Feedforward reflexes are also ________ reflexes.

________ is intestinal gas produced by bacteria in the colon during the metabolism of indigestible carbohydrates.

Match each product with the cell or region that secretes or contains it. -parietal cells

Chief cells secrete

A blockage of the ducts from the parotid glands would

Slow waves are

Which of the following statements is True?

Match the structure or compound to its function. -blocks cholesterol absorption

The myenteric plexus is

Peyer's patches are characteristic of the

Proteins must first be enzymatically degraded to single amino acids before entering the capillaries of the hepatic portal system.Is this True or False? What is the significance of this? Is absorption of carbohydrates and lipids restricted to monomers? Explain.

Match the structure to its function. -Protein digestion is completed here.

Match the following structures with the appropriate description. -located at the ventral end of the cecum

Bile is produced in the ________ and stored in the ________.

In the digestive system, HCl is released by ________, whereas HCO₃⁻ is secreted primarily from the ________.

Introduction to Physiology

Molecular Interactions

Compartmentation: Cells and Tissues

Energy and Cellular Metabolism

Membrane Dynamics

Communication, Integration, and Homeostasis

Introduction to the Endocrine System

Neurons: Cellular and Network Properties

The Central Nervous System

Sensory Physiology

Efferent Division: Autonomic and Somatic Motor Control

Muscles

Integrative Physiology I: Control of Body Movement

Cardiovascular Physiology

Blood Flow and the Control of Blood Pressure

Blood

Mechanics of Breathing

Gas Exchange and Transport

The Kidneys

Integrative Physiology II: Fluid and Electrolyte Balance

Metabolism and Energy Balance

Endocrine Control of Growth and Metabolism

The Immune System

Integrative Physiology III: Exercise

Reproduction and Development

Filters

Bile is produced in the and stored in the .

In the digestive system, HCl is released by , whereas HCO₃⁻ is secreted primarily from the .