Exam 15: The Digestive System

During the cephalic phase of gastric secretion,

Slow-wave potentials are always accompanied by contractile activity.

Which layer of the digestive wall is connective tissue that provided distensibility and elasticity?

Indicate which digestive secretion is being described in each question by writing the appropriate letter in the blank using the following answer code. -Activated by enterokinase.

The rate of gastric emptying is influenced by factors both in the stomach and in the duodenum.

The most important function of the stomach is to begin protein digestion.

The vagus nerve does all of the following except:

The typical coloration of the feces is due to

Which factor is inhibitory to digestive functions?

Indicate the site at which the following digestive processes take place by writing the appropriate letter in the blank using the following answer code: -Inhibited by CCK.

Parasympathetic and sympathetic stimulation both increase salivary secretion, contrary to the usual antagonistic activity of these two components of the autonomic nervous system.

The liver only secretes bile between meals.

The pancreatic ____________________ secretion neutralizes acidic gastric contents in the duodenal lumen.

Which of the following statements concerning the process of salivation is incorrect?

The formation of a lipid emulsion

The stomach can expand to 20 times in volume with little change in tension or rise in pressure.

There is continuous salivary secretion due to constant low-level stimulation by the parasympathetic nerve endings within the salivary glands.

Indicate which digestive secretion is being described in each question by writing the appropriate letter in the blank using the following answer code. -Activated by HCl.

Indicate which digestive secretion is being described in each question by writing the appropriate letter in the blank using the following answer code. -Enzyme that digests fat.

Select the terminal portion of the colon.