PHYSIO CH. 23 QUIZ

Term
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which of these organs is not considered an accessory digestive structure?
a. salivary glands
b. pancreas
c. liver
d. mouth
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Terms in this set (15)
which of these organs is not considered an accessory digestive structure?
a. salivary glands
b. pancreas
c. liver
d. mouth
mouth
which of the following membranes covers the stomach?
a. mesocolon
b. falciform
c. parietal peritoneum
d. visceral peritoneum
visceral peritoneum
which of these processes occurs throughout most of the alimentary canal?
a. absorption
b. ingestion
c. segmentation
d. propulsion
propulsion
which of these statements about reflexes in the GI tract is false?

a. short reflexes are provoked by nerves near the GI tract
b. food that distends the stomach initiates long reflexes
c. short reflexes are mediated by the enteric nervous system
d. long reflexes can be provoked by stimuli originating outside the GI tract
food that distends the stomach initiates long reflexes
which of these statements about the pharynx is true?
a. the oropharynx is continuous superiorly with the nasopharynx
b. the nasopharynx is involved in digestion
c. the laryngopharynx is composed partially of cartilage
d. it extends from the nasal and oral cavities superiorly to the esophagus anteriorly
the oropharynx is continuous superiorly with the nasopharynx
which structure is located where the esophagus penetrates the diaphragm?

a. lower esophageal sphincter
b. esophageal hiatus
c. cardiac orifice
d. upper esophageal sphincter
esophageal hiatus
which phase of deglutition involves contraction of the longitudinal muscle layer of the muscularis?

a. pharyngeal phase
b. voluntary phase
c. buccal phase
d. esophageal phase
esophageal phase
which of these cells secrete hormones?

a. enteroendocrine cells
b. chief cells
c. mucous neck cells
d. parietal cells
enteroendocrine cells
during gastric emptying, chyme is released into the duodenum through the ___________.

a. pyloric antrum
b. pyloric sphincter
c. pyloric canal
d. esophageal hiatus
pyloric sphincter
parietal cells secrete _________.

a. pepsin
b. pepsinogen
c. gastric
d. hydrochloric acid
hydrochloric acid
which of these is most associated with villi? a. bacterial flora b. intestinal glands c. lacteals d. haustralactealswhat is the role of the small intestine's MALT? a. preventing bacteria from entering the bloodstream b. secreting mucus c. activating pepsin d. buffering acidic chymepreventing bacteria from entering the bloodstreamwhich part of the large intestine attaches to the appendix? a. ascending colon b. cecum c. descending colon d. transverse coloncecumpancreatic juice _____________. a. deactivates bile b. is released into the cystic duct c. is secreted by pancreatic islet cells d. buffer chymebuffers chymewhere does the chemical digestion of starch begin? a. stomach b. esophagus c. small intestine d. mouthmouth