Exam 14: The Urinary System

Match the digestive secretions, labelled a. through e., to the descriptions. (Options may be used more than once or not at all.) a.bile salts b.pepsin(ogen) c.amylase d.lipase e.trypsin(ogen) -carbohydrate digestion begins

Where is the pyloric sphincter located?

The rate of gastric emptying depends entirely on the volume and fluidity of gastric contents.

Which of the following substances is a precursor to an enzyme that functions in the stomach?

Digestive enzymes produced by the small intestine are not secreted into the lumen but act intracellularly.

Which statement does NOT correctly describe the defecation reflex?

Match the hormone(s), labelled a. through d., to the descriptions. (Options may be used more than once or not at all.) a.both secretin and CCK b.secretin c.CCK d.gastrin -secretion inhibited by low pH

Stimulation of the taste buds increases gastric secretions.

Which of these factors does NOT affect gastric motility or emptying?

Which of these statements applies to bile salts?

Which statement does NOT describe cholecystokinin?

Factors in the duodenum influence the rate of gastric emptying.

What stimulates gallbladder contraction?

Which hormones act in the small intestine?

In general, sympathetic stimulation is excitatory to digestive activity.

Which statement applies to the enteric nervous system?

A(n) ____________________ ulcer is an erosion of the stomach wall.

Defecation is a spinal reflex.

The enterogastric reflex and enterogastrones inhibit gastric motility but stimulate gastric secretion.

Secretin stimulates the pancreatic ____________________ cells to secrete ____________________, whereas CCK stimulates the pancreatic ____________________ cells to secrete ____________________.