Exam 38: Structure and Function of the Digestive System

Match the hormone from the small intestine with its action. Hormones may be used more than once. -Stimulates pancreas to secrete alkaline pancreatic juice

Solids and fats in the stomach increase peristalsis and the rate of gastric emptying.

Which elements in saliva protect against tooth decay?

Exposure to which substance protects the mucosal barrier of the stomach?

Insulin is required for active absorption of carbohydrates by the small intestine.

What accomplishes the formation of water-soluble molecules to facilitate the absorption of the byproducts of lipid hydrolysis?

The entire epithelial population of the small intestines is replaced about every 30 to 45 days.

Lymphocytes, plasma cells, and macrophages are produced in the small intestine in the:

Salivary a-amylase initiates the digestion of _____ in the mouth and stomach.

Which stimulus increases the tone of the esophageal sphincter?

The vitamin that facilitates the absorption of iron by the epithelial cells of the duodenum and jejunum is vitamin:

The primary source of physiologic iron is:

The chief cells of the gastric glands secrete pepsinogen, which breaks down carbohydrates.

Which enzyme breaks down protein-forming polypeptides in the stomach?

The process of conjugation of bilirubin in the liver is best described as the transformation of:

Match the hormone from the small intestine with its action. Hormones may be used more than once. -Stimulates the gallbladder to eject bile and pancreas to secrete alkaline fluid

The ileogastric reflex inhibits gastric motility when the ileum becomes distended, but the gastroileal reflex stimulates ileal motility and relaxes the ileocecal sphincter.

Match the hormone from the small intestine with its action. Hormones may be used more than once. -Decreases pancreatic bicarbonate and enzyme secretions

The two requirements necessary in order for calcium at concentrations less than 5 mmol/L to be absorbed through the ileum are vitamin:

Kupffer cells are best described as: