Question 1

Which portion of the small intestine is most distal from the pylorus of the stomach?

Accepted Answer

A)  Jejunum 
B)  Duodenum 
C)  Ileum 
D)  Common bile duct 
E)  Hepatopancreatic ampulla 
A)  Jejunum 
B)  Duodenum 
C)  Ileum 
D)  Common bile duct 
E)  Hepatopancreatic ampulla

Question 2

Which of the following might happen if a person begins laughing while swallowing a liquid?

Accepted Answer

A)  Laryngeal constriction forces liquid through the pharynx. 
B)  Relaxation of the soft palate allows liquid to enter the nasal cavity. 
C)  The tongue might be swallowed. 
D)  Nothing; swallowing will be normal. 
E)  Peristalsis will not begin. 
A)  Laryngeal constriction forces liquid through the pharynx. 
B)  Relaxation of the soft palate allows liquid to enter the nasal cavity. 
C)  The tongue might be swallowed. 
D)  Nothing; swallowing will be normal. 
E)  Peristalsis will not begin.

Question 3

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 4

An organ is described as follows: cords of cells radiating outward from a central vein with sinusoids between the cords of cells. The organ having this histological structure is the ________.

Accepted Answer

A)  pancreas 
B)  spleen 
C)  liver 
D)  stomach 
E)  gallbladder 
A)  pancreas 
B)  spleen 
C)  liver 
D)  stomach 
E)  gallbladder

Question 5

Emulsification

Accepted Answer

A)  converts small lipid droplets into larger droplets. 
B)  occurs in the gallbladder. 
C)  chemically digests lipids. 
D)  increases surface area for lipid digestion. 
E)  involves enzymes. 
A)  converts small lipid droplets into larger droplets. 
B)  occurs in the gallbladder. 
C)  chemically digests lipids. 
D)  increases surface area for lipid digestion. 
E)  involves enzymes.

Question 6

Which of the following enzymes functions at the lowest pH?

Accepted Answer

A)  Salivary amylase 
B)  Pancreatic amylase 
C)  Pepsin 
D)  Trypsin 
E)  Dipeptidase 
A)  Salivary amylase 
B)  Pancreatic amylase 
C)  Pepsin 
D)  Trypsin 
E)  Dipeptidase

Question 7

The digestive juice that contains enzymes capable of digesting all major food groups is ________.

Accepted Answer

A)  gastric juice 
B)  biliary juice 
C)  salivary juice 
D)  pancreatic juice 
E)  hepatic juice 
A)  gastric juice 
B)  biliary juice 
C)  salivary juice 
D)  pancreatic juice 
E)  hepatic juice

Question 8

A large amount of adipose tissue accumulates in the ________.

Accepted Answer

A)  greater omentum 
B)  lesser omentum 
C)  coronary ligament 
D)  sigmoid mesocolon 
E)  visceral peritoneum 
A)  greater omentum 
B)  lesser omentum 
C)  coronary ligament 
D)  sigmoid mesocolon 
E)  visceral peritoneum

Question 9

Blockage of the ileocecal valve would prevent

Accepted Answer

A)  pancreatic juice from entering the duodenum. 
B)  bile from entering the duodenum. 
C)  lymph from entering the jejunum. 
D)  chyme from entering the ileum. 
E)  chyme from entering the large intestine. 
A)  pancreatic juice from entering the duodenum. 
B)  bile from entering the duodenum. 
C)  lymph from entering the jejunum. 
D)  chyme from entering the ileum. 
E)  chyme from entering the large intestine.

Question 10

A proteolytic enzyme secreted by the pancreas is ________.

Accepted Answer

A)  ribonuclease 
B)  chymotrypsin 
C)  amylase 
D)  enterogastrone 
E)  pancreatic lipase 
A)  ribonuclease 
B)  chymotrypsin 
C)  amylase 
D)  enterogastrone 
E)  pancreatic lipase

Question 11

The gallbladder contracts in response to the hormone ________.

Accepted Answer

A)  secretin 
B)  cholecystokinin (CCK) 
C)  gastrin 
D)  somatostatin 
E)  insulin 
A)  secretin 
B)  cholecystokinin (CCK) 
C)  gastrin 
D)  somatostatin 
E)  insulin

Question 12

Saliva

Accepted Answer

A)  is produced only when there is food in the mouth. 
B)  increases ulceration in the mouth. 
C)  is responsible for peristalsis in the mouth. 
D)  moistens food and begins starch digestion in the mouth. 
E)  does not prevent bacterial infection in the mouth. 
A)  is produced only when there is food in the mouth. 
B)  increases ulceration in the mouth. 
C)  is responsible for peristalsis in the mouth. 
D)  moistens food and begins starch digestion in the mouth. 
E)  does not prevent bacterial infection in the mouth.

Question 13

The enteric plexus

Accepted Answer

A)  is found in the mucosa. 
B)  consists of the myenteric plexus and the celiac plexus. 
C)  helps control movement and secretions of the digestive tract. 
D)  contains parasympathetic neurons. 
E)  Both "Helps control movement and secretions of the digestive tract" and "Contains parasympathetic neurons" are correct 
A)  is found in the mucosa. 
B)  consists of the myenteric plexus and the celiac plexus. 
C)  helps control movement and secretions of the digestive tract. 
D)  contains parasympathetic neurons. 
E)  Both "Helps control movement and secretions of the digestive tract" and "Contains parasympathetic neurons" are correct

Question 14

The gastric phase of gastric secretion

Accepted Answer

A)  decreases the release of gastrin in the stomach. 
B)  is triggered by taste, sight, thought, or smell of food. 
C)  is mediated by impulses on sympathetic nerves. 
D)  leads to the greatest volume of gastric secretion. 
E)  leads to the least volume of gastric secretion. 
A)  decreases the release of gastrin in the stomach. 
B)  is triggered by taste, sight, thought, or smell of food. 
C)  is mediated by impulses on sympathetic nerves. 
D)  leads to the greatest volume of gastric secretion. 
E)  leads to the least volume of gastric secretion.

Question 15

Which of the following pairs describing structures of teeth is mismatched?

Accepted Answer

A)  Crown - enamel 
B)  Root - root canal 
C)  Alveoli - periodontal ligament 
D)  Pulp cavity - cementum 
E)  Apical foramen - blood supply 
A)  Crown - enamel 
B)  Root - root canal 
C)  Alveoli - periodontal ligament 
D)  Pulp cavity - cementum 
E)  Apical foramen - blood supply

Question 16

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 17

Why does the superior part of the esophagus contain skeletal muscle instead of smooth muscle?

Accepted Answer

A)  The first phase of swallowing is under involuntary control. 
B)  The second phase of swallowing is under voluntary control. 
C)  The first phase of swallowing is under voluntary control. 
D)  The second phase of swallowing is under involuntary control. 
A)  The first phase of swallowing is under involuntary control. 
B)  The second phase of swallowing is under voluntary control. 
C)  The first phase of swallowing is under voluntary control. 
D)  The second phase of swallowing is under involuntary control.

Question 18

Chylomicrons

Accepted Answer

A)  are synthesized in intestinal epithelial cells. 
B)  enter capillaries in the small intestine. 
C)  help emulsify fats. 
D)  are a rich source of carbohydrate. 
E)  are synthesized in the lumen of the small intestines. 
A)  are synthesized in intestinal epithelial cells. 
B)  enter capillaries in the small intestine. 
C)  help emulsify fats. 
D)  are a rich source of carbohydrate. 
E)  are synthesized in the lumen of the small intestines.

Question 19

What is the role of serotonin in the digestive tract?

Accepted Answer

A)  Decrease nausea 
B)  Stimulate motility 
C)  Hormone release 
D)  Inhibit motility 
A)  Decrease nausea 
B)  Stimulate motility 
C)  Hormone release 
D)  Inhibit motility

Question 20

Match the function with its appropriate description.
-Absorption

Accepted Answer

A) Movement of molecules from digestive tract into blood 
B) Chewing of food 
C) Muscular contractions that propel food 
D) Removal of undigested wastes from body 
E) Breakdown of organic molecules with digestive enzymes 
A) Movement of molecules from digestive tract into blood 
B) Chewing of food 
C) Muscular contractions that propel food 
D) Removal of undigested wastes from body 
E) Breakdown of organic molecules with digestive enzymes

Exam 24: Digestive System

Which portion of the small intestine is most distal from the pylorus of the stomach?

Which of the following might happen if a person begins laughing while swallowing a liquid?

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

An organ is described as follows: cords of cells radiating outward from a central vein with sinusoids between the cords of cells. The organ having this histological structure is the ________.

Emulsification

Which of the following enzymes functions at the lowest pH?

The digestive juice that contains enzymes capable of digesting all major food groups is ________.

A large amount of adipose tissue accumulates in the ________.

Blockage of the ileocecal valve would prevent

A proteolytic enzyme secreted by the pancreas is ________.

The gallbladder contracts in response to the hormone ________.

Saliva

The enteric plexus

The gastric phase of gastric secretion

Which of the following pairs describing structures of teeth is mismatched?

The oral cavity

Why does the superior part of the esophagus contain skeletal muscle instead of smooth muscle?

Chylomicrons

What is the role of serotonin in the digestive tract?

Match the function with its appropriate description. -Absorption

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joint 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-Base Balance

Reproductive System

Development, Growth, Aging, and Genetics

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