Exam 2: The Digestive System: Mechanism for Nourishing the Body

Among the regulatory peptide molecules,some are recognized as true hormones.Which substance is a paracrine rather than a hormone?

Match the corresponding action to the hormone.  Each choice is used only once. -pancreatic polypeptide

Describe the mechanisms by which resin-type drugs and functional foods containing phytostanols lower high blood cholesterol levels.

Broad-spectrum antibiotics are capable of killing many different bacteria,including many of those that naturally live in the intestines.Develop a hypothesis regarding the effects of broad-spectrum antibiotics on the beneficial effects of gut flora.

Which substance is not a component of saliva?

Pancreatitis occurs when zymogens become activated within the pancreas.

Pyloric glands are located predominantly ____.

What product produced by neck cells in the oxyntic gland of the stomach protects the epithelium from mechanical and chemical damage?

Which hormone decreases appetite?

Which substance is enterohepatically circulated?

Match the corresponding action to the hormone.  Each choice is used only once. -somatostatin

CCK stimulates the release of bile.

Which hormone stimulates gall bladder contraction?

Discuss three of the five mechanisms by which probiotics may be helpful in diarrheal illnesses.

Which division of the nervous system decreases digestive tract motility and secretions?

Leptin secretion stimulates the desire to eat.

In which part of the brain is the swallowing center located?

Gastrin stimulates which cells?

The hormone primarily responsible for contraction of the gallbladder and release of bile into the duodenum is ____.

Which hormone(s)is/are responsible for decreasing sodium absorption in the colon?