the question.
1) Which of the following is an accessory organ of digestion?
A) pancreas B) stomach C) colon D) spleen E) esophagus
2) Which of the
... [Show More] following is the sequence of layers from the lumen to the outer wall of the digestive tract?
A) mucosa, submucosa, muscularis externa, serosa
B) serosa, submucosa, mucosa, muscularis externa
C) mucosa, submucosa, serosa, muscularis externa
D) submucosa, mucosa, serosa, muscularis externa
E) submucosa, muscularis externa, serosa, mucosa
3) The motor activity of the muscularis externa is controlled by the
A) myenteric plexus.
B) migrating motor complex.
C) extrinsic neurons.
D) motilin.
E) submucosal plexus.
4) Chief cells secrete
A) pepsinogen.
B) intrinsic factor.
C) gastrin.
D) hydrochloric acid.
E) mucus.
5) G cells of the stomach secrete
A) gastrin.
B) enterokinase.
C) pepsin.
D) secretin.
E) cholecystokinin.
6) The myenteric plexus is
A) a layer of longitudinal smooth muscle.
B) primarily composed of connective tissue.
C) the mucus secreting layer of the digestive tract.
D) a layer of circular smooth muscle.
E) a network of neurons.
7) In the digestive system, HCl is released by __________, whereas HCO3
- is secreted primarily from the
__________.
A) parietal cells of the stomach, liver B) the pancreas, parietal cells of the stomach
C) parietal cells of the stomach, pancreas D) the liver, parietal cells of the stomach
8) Nutrient absorption occurs primarily in the
A) stomach.
B) large intestine.
C) liver.
D) small intestine.
9) Bile is
A) secreted by hepatocytes.
B) manufactured by the gall bladder.
C) released into the stomach.
D) A and B
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10) The gastric phase of gastric secretion is triggered by
A) the entry of chyme into the large intestine.
B) the entry of food into the stomach.
C) the release of cholecystokinin and secretin by the small intestine.
D) the entry of chyme into the small intestine.
E) the sight, thought, or smell of food.
11) An enzyme that will digest proteins into peptides is
A) amylase. B) tryps [Show Less]