The Digestive System Part 3 Question Preview (ID: 33750)


Part 3. TEACHERS: click here for quick copy question ID numbers.

The major functions of the large intestine are
a) absorption and preparation of fecal material for elimination
b) production of vitamins and fecal segmentation
c) completion of digestion and secretion of digestive secretions
d) metabolic and hematological regulation

The three parts of the large intestine are the
a) duodenum, jejunum, and ileum
b) transverse, ascending, and descending colons
c) cecum, colon, and rectum
d) sigmoid colon, rectum, and anus

The pancreas produces and releases
a) lipases
b) pancreatic amylase
c) proteases
d) all of the above

The hormone that causes the gallbladder to release bile is
a) cholecystokinin
b) secretin
c) gastrin
d) enterogastrone

The exocrine portion of the pancreas is composed of
a) islets of Langerhans
b) pancreatic crypts
c) pancreatic acini
d) pancreatic lobules

The primary function(s) of the liver include(s)
a) metabolic regulation
b) hemotological regulation
c) synthesis and secretion of bile
d) all of the above

The hormone that causes the pancreas to release its digestive enzymes into the small intestine is
a) cholecystokinin
b) secretin
c) gastrin
d) enterogastrone

The intestinal hormone that stimulates parietal cells and chief cells in the stomach to secrete is
a) CCK
b) GIP
c) gastrin
d) enterokinase

An intestinal hormone that stimulates the gallbladder to release bile is
a) enterokinase
b) CCK
c) gastrin
d) secretin

An intestinal hormone that stimulates the release of insulin from the pancreatic islet cells is
a) secretin
b) GIP
c) enterokinase
d) enterocrinin

Movement from the transverse colon through the rest of the large intestine results from peristaltic contractions called
a) mass movements
b) the defecation reflex
c) emulsification
d) the ileocecal reflex

At the hepatic flexure, the colon becomes the
a) ascending colon
b) transverse colon
c) sigmoid colon
d) descending colon

Distension of the rectum triggers the
a) defecation reflex
b) ileocecal reflex
c) initiation of fecal segmentation
d) release of hormonal secretions

Salivary amylase, which is secreted in the mouth, aids in the digestion of
a) protein
b) fat
c) carbohydrate
d) all of the above

An enzyme that digests proteins into polypeptides is
a) lipase
b) amylase
c) nuclease
d) trypsin

Enzymes involved in fat digestion are called
a) pepsins
b) lipases
c) carboxypeptidases
d) amylases

Hydrochloric acid in the stomach functions primarily to
a) activate enzymes involved in protein digestion
b) hydrolyze peptide bonds
c) facilitate lipid digestion
d) facilitate carbohydrate digestion

Digested fats are absorbed into the ______and then enter the ______.
a) bloodstream; lacteals
b) lacteals; villi
c) villi; bloodstream
d) villi; lacteals

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