Question 1

The oral cavity

Accepted Answer

A)  opens into the nasopharynx. 
B)  directly connects with the esophagus. 
C)  contains the parotid salivary glands. 
D)  has boundaries that include the lips, palate and cheeks. 
E)  is lined with cuboidal epithelium. 
A)  opens into the nasopharynx. 
B)  directly connects with the esophagus. 
C)  contains the parotid salivary glands. 
D)  has boundaries that include the lips, palate and cheeks. 
E)  is lined with cuboidal epithelium.

Question 2

The anal canal

Accepted Answer

A)  begins at the sigmoid colon and ends at the rectum. 
B)  has an internal sphincter composed of smooth muscle. 
C)  contains many goblet cells. 
D)  contains tubular glands called crypts. 
E)  has an external sphincter composed of smooth muscle. 
A)  begins at the sigmoid colon and ends at the rectum. 
B)  has an internal sphincter composed of smooth muscle. 
C)  contains many goblet cells. 
D)  contains tubular glands called crypts. 
E)  has an external sphincter composed of smooth muscle.

Question 3

Match the cell type with its function.
-goblet cells

Accepted Answer

A) produce hormones 
B) produce mucus 
C) may protect intestinal epithelium 
D) synthesize bile 
E) produce digestive enzymes 
A) produce hormones 
B) produce mucus 
C) may protect intestinal epithelium 
D) synthesize bile 
E) produce digestive enzymes

Question 4

Parasympathetic nerves extend to the digestive tract through the ____________ nerve.

Accepted Answer

A)  gastric 
B)  cardiac 
C)  vagus 
D)  accessory 
A)  gastric 
B)  cardiac 
C)  vagus 
D)  accessory

Question 5

What is the function of bicarbonate when it is secreted by the large intestine?

Accepted Answer

A)  It increases the pH of the feces, which are acidic because of bacterial secretions. 
B)  It aids in the digestion of proteins 
C)  It decreases the pH of feces, which are alkaline because of bacterial secretions. 
D)  It aids in the digestion of cellulose. 
A)  It increases the pH of the feces, which are acidic because of bacterial secretions. 
B)  It aids in the digestion of proteins 
C)  It decreases the pH of feces, which are alkaline because of bacterial secretions. 
D)  It aids in the digestion of cellulose.

Question 6

Which of the following is NOT part of a portal triad?

Accepted Answer

A)  hepatic artery 
B)  hepatic duct 
C)  hepatic portal vein 
D)  central vein 
A)  hepatic artery 
B)  hepatic duct 
C)  hepatic portal vein 
D)  central vein

Question 7

The muscle that forms the majority of the lips is the _____ and the muscle that forms the majority of the cheeks is the _____.

Accepted Answer

A)  orbicularis oris; buccinator 
B)  buccinators; orbicularis oris 
C)  masseter; buccinator 
D)  buccinators; masseter 
E)  orbicularis oculi; masseter 
A)  orbicularis oris; buccinator 
B)  buccinators; orbicularis oris 
C)  masseter; buccinator 
D)  buccinators; masseter 
E)  orbicularis oculi; masseter

Question 8

What is the function of the gallbladder?

Accepted Answer

A)  produce bile 
B)  store bicarbonate 
C)  add pigment to bile 
D)  store and concentrate bile 
A)  produce bile 
B)  store bicarbonate 
C)  add pigment to bile 
D)  store and concentrate bile

Question 9

Which part of the pharynx is NOT involved with food transport?

Accepted Answer

A)  nasopharynx 
B)  oropharynx 
C)  laryngopharynx 
D)  All the the choices are involved with food transport 
A)  nasopharynx 
B)  oropharynx 
C)  laryngopharynx 
D)  All the the choices are involved with food transport

Question 10

What is the main stimulus for bile secretion from the gallbladder?

Accepted Answer

A)  cholecystokinin 
B)  vagal stimulation 
C)  secretin 
D)  large amounts of protein in the chyme 
A)  cholecystokinin 
B)  vagal stimulation 
C)  secretin 
D)  large amounts of protein in the chyme

Question 11

Which of the following enzymes digests protein?

Accepted Answer

A)  bile 
B)  pepsin 
C)  isomaltose 
D)  sucrase 
E)  lipase 
A)  bile 
B)  pepsin 
C)  isomaltose 
D)  sucrase 
E)  lipase

Question 12

Duodenal gland secretion prevents

Accepted Answer

A)  digestive enzyme release. 
B)  release of bile from the liver. 
C)  irritation of the duodenal mucosa by acidic chyme and digestive enzymes. 
D)  the release of insulin. 
E)  peristalsis. 
A)  digestive enzyme release. 
B)  release of bile from the liver. 
C)  irritation of the duodenal mucosa by acidic chyme and digestive enzymes. 
D)  the release of insulin. 
E)  peristalsis.

Question 13

Gastrocolic reflexes are reflexes that

Accepted Answer

A)  empty the stomach. 
B)  release gastric secretions into the stomach. 
C)  cause mass movements of the colon when food is present in the stomach. 
D)  lead to mass movements of the colon in response to food in the duodenum. 
E)  stop movement in the colon. 
A)  empty the stomach. 
B)  release gastric secretions into the stomach. 
C)  cause mass movements of the colon when food is present in the stomach. 
D)  lead to mass movements of the colon in response to food in the duodenum. 
E)  stop movement in the colon.

Question 14

What keeps the bolus from entering the larynx during deglutition?

Accepted Answer

A)  the epiglottis 
B)  the uvula 
C)  the tongue 
D)  the upper esophageal sphincter 
A)  the epiglottis 
B)  the uvula 
C)  the tongue 
D)  the upper esophageal sphincter

Question 15

Diffusion and active transport are likely to be important in

Accepted Answer

A)  mastication of food. 
B)  absorption of food. 
C)  elimination of undigested food. 
D)  propulsion of food through the digestive tract. 
E)  mixing of food. 
A)  mastication of food. 
B)  absorption of food. 
C)  elimination of undigested food. 
D)  propulsion of food through the digestive tract. 
E)  mixing of food.

Question 16

Bile secretion is

Accepted Answer

A)  performed continuously by the liver. 
B)  is stimulated by sympathetic nerves. 
C)  is stimulated by decreased amounts of bile salts. 
D)  stimulated by increased vitamin B12 storage. 
E)  controlled by the gallbladder. 
A)  performed continuously by the liver. 
B)  is stimulated by sympathetic nerves. 
C)  is stimulated by decreased amounts of bile salts. 
D)  stimulated by increased vitamin B12 storage. 
E)  controlled by the gallbladder.

Question 17

Enzymes secreted by the small intestine include

Accepted Answer

A)  disaccharidases. 
B)  secretin. 
C)  cholecystokinin. 
D)  bile. 
E)  histamine. 
A)  disaccharidases. 
B)  secretin. 
C)  cholecystokinin. 
D)  bile. 
E)  histamine.

Question 18

What is the function of interstitial cells of the myenteric plexus?

Accepted Answer

A)  chemoreceptors that detect the chemical composition of food 
B)  production of mucus for lubrication and protection 
C)  pacemaker cells that promote rhythmic contractions of the smooth muscle 
D)  release of enzymes for chemical digestion 
A)  chemoreceptors that detect the chemical composition of food 
B)  production of mucus for lubrication and protection 
C)  pacemaker cells that promote rhythmic contractions of the smooth muscle 
D)  release of enzymes for chemical digestion

Question 19

The longitudinal layer of smooth muscle in the large intestinal wall forms three bands called the

Accepted Answer

A)  teniae coli. 
B)  haustra. 
C)  coli longitudini. 
D)  omental appendages. 
E)  rugae. 
A)  teniae coli. 
B)  haustra. 
C)  coli longitudini. 
D)  omental appendages. 
E)  rugae.

Question 20

Small droplets of digested lipids surrounded by bile salts are called

Accepted Answer

A)  chylomicrons. 
B)  micelles. 
C)  monoglycerides. 
D)  diglycerides. 
E)  lacteals. 
A)  chylomicrons. 
B)  micelles. 
C)  monoglycerides. 
D)  diglycerides. 
E)  lacteals.

Exam 24: Digestive System

The oral cavity

The anal canal

Match the cell type with its function. -goblet cells

Parasympathetic nerves extend to the digestive tract through the ____________ nerve.

What is the function of bicarbonate when it is secreted by the large intestine?

Which of the following is NOT part of a portal triad?

The muscle that forms the majority of the lips is the _____ and the muscle that forms the majority of the cheeks is the _____.

What is the function of the gallbladder?

Which part of the pharynx is NOT involved with food transport?

What is the main stimulus for bile secretion from the gallbladder?

Which of the following enzymes digests protein?

Duodenal gland secretion prevents

Gastrocolic reflexes are reflexes that

What keeps the bolus from entering the larynx during deglutition?

Diffusion and active transport are likely to be important in

Bile secretion is

Enzymes secreted by the small intestine include

What is the function of interstitial cells of the myenteric plexus?

The longitudinal layer of smooth muscle in the large intestinal wall forms three bands called the

Small droplets of digested lipids surrounded by bile salts are called

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joints and Movement

Muscular System: Histology and Physiology

Muscular System: Gross Anatomy

Functional Organization of Nervous Tissue

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: the Heart

Cardiovascular System: Blood Vessels and Circulation

Lymphatic System and Immunity

Respiratory System

Nutrition, Metabolism, and Temperature Regulation

Urinary System

Water, Electrolyte, and Acid-Based Balance

Reproductive System

Development, Growth, Aging, and Genetics

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The muscle that forms the majority of the lips is the _ and the muscle that forms the majority of the cheeks is the _.