Digestive System 2

Question 1

Reflux of the gastric contents into the esophagus occurs because of

A) relaxation of the cardiac sphincter

B) contraction of the pyloric sphincter

C) spasms of the sub mucosal layer of the stomach wall

D) increased hydrochloric acid production of the parietal wall

E) increased amounts of the mucous production by the stomach

Answer 1

A) relaxation of the cardiac sphincter

Question 2

Inability of the pyloric sphincter to open would prevent

A) food from entering the stomach
B) stomach acid from being released 
C) digestive enzymes from being released
D) food from entering the small intestine
E) the making of chyme

Answer 2

D) food from entering the small intestine

Question 3

Which of the following are secreted by the stomach?

A) amylase and lipase
B) pepsinogen and intrinsic factor
C) bile and lipase
D) trypsin and amylase
E) bicarbonate and secretin

Answer 3

B) pepsinogen and intrinsic factor

Question 4

Which of the following represents a mismatch in stomach wall structure?

A) muscularis - two layers; both circular
B) rugae - folds of mucosa and submucosa
C) mucosa - gastric glands
D) gastric pits - open onto surface of stomach mucosa
E) lining - simple columnar epithelium

Answer 4

A) muscularis - two layers; both circular

Question 5

Which of the following regions is correctly matched with its description?

A) body - portion closest to the oesophagus

B) pylorus - the most inferior portion of the stomach

C) fundus - opening from the stomach to the duodenum

D) cardiac region - the largest portion of the stomach

E) pyloric opening - opening from the oesophagus

Answer 5

B) pylorus - the most inferior portion of the stomach