Exam 16: The Digestive System

Indicate which digestive secretion is being described in each question by writing the appropriate letter in the blank using the following answer code . a.bile salts b.pepsin(ogen) c.amylase d.lipase e.trypsin(ogen) -Exerts detergent action

Match hormone with action. a.gastrin b.secretin c.CCK d.glucose-dependent insulinotropic peptide e.histamine -Stimulates islets of Langerhans to secrete a hormone

The major chemical digestive activity occurring in the stomach is digestion of

_________ do(es) not enter the duodenal lumen.

Which is the primary absorptive organ of the digestive system?

__________ are absorbed by receptor mediated endocytosis in the terminal ileum.

____________ is a recently discovered hormone released from the liver when iron levels in the body become too ___________ (high or low?).

After the food has been chewed and mixed with salivary secretion, it is referred to as chyme.

The primary mixing and propulsive motility process of the small intestine is called ____________________.

Match control mechanism with characteristic. a.autonomous smooth muscle function b.extrinsic (autonomic) nerves c.hormones d.intrinsic nerve plexuses -Coordinates activity between different regions of the digestive tract

Match control mechanism with characteristic. a.autonomous smooth muscle function b.extrinsic (autonomic) nerves c.hormones d.intrinsic nerve plexuses -Pathway by which factors outside of the digestive system can influence digestion

Of the fluid entering the small intestine, ____ percent is reabsorbed.

Indicate which hormone(s) is being described by writing the appropriate letter in the blank using the following answer code. a.secretin and CCK b.secretin c.CCK d.gastrin -Stimulate(s) gallbladder contraction

Indicate which hormone(s) is being described by writing the appropriate letter in the blank using the following answer code. a.secretin and CCK b.secretin c.CCK d.gastrin -Stimulated primarily by the presence of acid

Digestive motility is

The intestinal feature responsible for increasing the absorptive surface area the most are

Microvilli establish a brush border in the small intestine.

Indicate which item in the top column best describes the item in the bottom column by writing the appropriate letter in the blank. a.Secretes NaHCO3 b.Enzyme for protein digestion secreted by pancreas c.First to activate pepsinogen d.Enzyme for fat digestion e.Functions inside brush border f.Secretes gastrin g.Stimulates parietal and chief cells h.Enzyme for carbohydrate digestion that functions primarily in the body of the stomach i.Secreted by chief cells j.Secretes pancreatic enzymes k.Secreted by duodenal cells in response to the presence of acid l.Stimulates pancreatic acinar cells -Pancreatic duct cell

During vomiting,

Which of the following statements concerning HCl in the stomach is correct?