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The correct sequence for the layers within the wall of the alimentary canal from inside to outside is the
mucous membrane, submucosa, muscular layer, serous layer
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the teeth that are best adapted for biting off relatively large pieces of food are the
incisors
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the root canal of the tooth contains
blood vessels and nerves
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The salivary enzyme amylase functions to digest
carbohydrates
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The main part of the stomach is called
the body
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A relatively new treatment in the management of gastric ulcers is a drug that inhibits the production of HCl in the stomach. If a person took this medication for a long period, the digestion of which of the following would be affected the most?
proteins
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The parietal cells of gastric glands secrete
hydrochloric acid
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Gastrin, which is secreted by stomach cells, functions to
increase the secretion of gastric gland
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Cholecystokinin from the interstinal wall is stimulated by the presence of
protein and fat in the small intestine
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the mechansim of swallowing involves
food being forced into the pharynx, involuntary reflexes moving food into the esophagus, peristaltic contractions moving food through the esophagus
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the hormone called seccretin functions to
stimulate the release of pancreatic juice
-
which of the following is a protein-splitting enzyme found in a pancreatic juice?
trypsin
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the liver functions to
form glucose from noncarbohydrates, store vitamin D, destroy damaged blood cells
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What constituent of bile has a digestive function?
bile salts
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one of the major functions of the large intestine is to
reabsorb water from chyme
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during the defacation reflex, the
diaphragm is lowered
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a characteristic shared by all enzymes involved in protein digestion is that all are
secreted in an inactive form
-
which of the following is true in regard to bile?
none of these
-
Peristalsis occurs in the digestive tract
from pharynx to the anus
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digestion of which of the following would be affeccted the most if the liver were severely damaged?
lipids
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because of their location, swollen palatine tonsils may interfere with
both breathing and swallowing
-
the loss of teeth is most commonly associated with diseases of
gum and pulp
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jaundice, which is characterized by a yellowish tinge to the tissue, is due to an increased blood concentration of
bile pigments
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