Deck 16: Digestive System

Question 1

Peritonitis is a potentially life-threatening inflammation of the pleural membranes.

Answer 1

False

Question 2

Which of the following phases of swallowing involves the epiglottis covering the opening of the larynx?

A) Voluntary phase
B) Esophageal phase
C) Pharyngeal phase
D) None of these are correct

Answer 2

C

Question 3

Which of the following is responsible for movement of chyme in the small intestine?

A) Peristaltic contraction
B) Segmental contraction
C) Mass movements
D) All of these are correct

Answer 3

A

Question 4

Movement of water out of the large intestine is by

A) active transport.
B) cotransport.
C) osmosis.
D) All of the choices are correct.

Question 5

Which of the following is where the small and large intestine meet?

A) Pyloric sphincter
B) Esophageal sphincter
C) Ileocecal junction
D) Cystic sphincter

Question 6

Which of the following is the tunica of the digestive tract that has blood vessels, nerves and small glands?

A) Muscularis
B) Serosa or adventitia
C) Submucosa
D) Mucosa

Question 7

Emulsification

A) converts glucose into fat droplets.
B) occurs in the gallbladder.
C) chemically digests lipids.
D) increases surface area of lipid droplets for lipid digestion.

Question 8

Which of the following describes the blood in the hepatic portal vein?

A) Oxygen-rich, nutrient-rich
B) Oxygen-rich, nutrient-poor
C) Oxygen-poor, nutrient-rich
D) None of these are correct

Question 9

Which of the following is NOT a part of digestion?

A) Absorb water, electrolytes and other nutrients
B) Eliminate undigested food through the anus
C) Ingest food
D) All of these are involved in digestion

Question 10

Which of the following is the part of the stomach that connects with the small intestine?

A) Body
B) Pyloric
C) Cardiac
D) Fundus

Question 11

Which of the following is the effect of the release of secretin on the pancreas?

A) Pancreas relaxes
B) Pancreas releases more enzymes in the pancreatic juice
C) Pancreas releases more bicarbonate in the pancreatic juice
D) None of these are correct

Question 12

Which phase of gastric secretion is stimulated by the distention of the stomach?

A) Gastric phase
B) Intestinal phase
C) Cephalic phase
D) Gastrointestinal phase

Question 13

An abscessed tooth may cause enlargement of the superior cervical lymph nodes.

Question 14

Which are the salivary glands that are located anterior to the ears?

A) Sebaceous glands
B) Parotid glands
C) Sublingual glands
D) Submandibular glands

Question 15

Which of the following are the three layers of the tooth?

A) Enamel, bone, root canal
B) Enamel, dentin, pulp
C) Bone, dentin, root canal
D) Bone, dentin, pulp

Question 16

Most glucose is absorbed in the epithelial cells of the small intestine by

A) simple diffusion.
B) secondary active transport with Na⁺.
C) osmosis.
D) phagocytosis.

Question 17

Which is a change in the digestive system associated with aging?

A) Decreased mucin secretion
B) Thinning of the tunica muscularis
C) Decreased enzyme secretion
D) Decreased replacement of epithelial cells
E) All choices are correct

Question 18

Which of the following increases the surface area of the individual simple columnar epithelial cells?

A) Circular folds
B) Villi
C) Microvilli
D) All of these are correct

Question 19

What is the substance secreted by the chief cells of the gastric glands?

A) Pepsinogen
B) Hydrochloric acid
C) Mucus
D) Gastrin

Question 20

Which of the following causes the release of fecal material?

A) Gastrocolic reflex
B) Defecation reflex
C) Duodenocolic reflex
D) Pyloric reflex

Question 21

Distention of the stomach activates a direct stimulatory effect on the gastric glands.

Question 22

Hydrochloric acid is secreted in the

A) esophagus.
B) stomach.
C) small intestine.
D) large intestine.

Question 23

The medulla oblongata controls gastric secretion both by the parasympathetic branch of the nervous system and the endocrine system.

Question 24

Which of the following inhibits the secretion of the gastric glands?

A) duodenum pH of less than two
B) lipids in the stomach
C) gastrin
D) duodenum pH of less than two AND lipids in the stomach
E) duodenum pH of less than two AND gastrin

Question 25

Which of the following is the correct order for the major parts of the gastrointestinal tract?

A) esophagus, stomach, large intestine, small intestine, mouth
B) mouth, stomach, esophagus, large intestine, small intestine
C) mouth, small intestine, stomach, esophagus, large intestine
D) mouth, esophagus, stomach, small intestine, large intestine

Question 26

Most nutrient absorption occurs in the

A) esophagus.
B) stomach.
C) small intestine.
D) large intestine.

Question 27

Which of the following hormones does not inhibit gastric gland secretions?

A) secretin
B) gastrin
C) gastric inhibitory peptide
D) cholecystokinin

Question 28

Defecation reflexes are stimulated by the presence of feces in the rectum.

Question 29

Mass movements of the colon are integrated by

A) the enteric plexus.
B) parasympathetic reflexes.
C) local reflexes.
D) the enteric plexus and parasympathetic reflexes.
E) parasympathetic reflexes and local reflexes.

Question 30

What organ produces bile?

A) liver
B) small intestine
C) pancreas
D) stomach

Question 31

Defecation is stimulated by...

A) the enteric plexus.
B) parasympathetic reflexes.
C) local reflexes.
D) the enteric plexus and parasympathetic reflexes.
E) parasympathetic reflexes and local reflexes.

Question 32

Mass movements of the colon propel its contents toward the rectum.

Question 33

Which of the following does not occur during the gastric phase of gastric secretion?

A) Gastrin begins to be secreted by the lower part of the stomach.
B) Hydrochloric acid and pepsin secretion is stimulated in the upper and middle parts of the stomach.
C) Tactile sensation of food in the mouth sends nervous impulses to the medulla oblongata.
D) all of the choices are correct
E) none of the choices are correct

Question 34

Involuntary muscle contractions which move a bolus through the gastrointestinal tract are called

A) mastication.
B) peristalsis.
C) defecation.
D) chime.

Question 35

Mass movements in the colon are stimulated by...

A) food in the stomach.
B) chyme in the duodenum.
C) feces in the rectum.
D) food in the stomach and chyme in the duodenum.
E) food in the stomach, chyme in the duodenum and feces in the rectum.