Exam 3: The Basics of Digestion

Which of the following will not generally cause diarrhea?

The sphincter between the end of the small intestine and the beginning of the large intestine is the ileocecal sphincter.

The produces bile and the stores it.

Which of the following foods leaves the stomach first?

Gallstones are small, hard, crystalline structures that form in the gallbladder when bile is abnormally thin.

What are the most important enzymes produced by the pancreas and what does each do?

Describe the role bacteria play in digestion.

The majority of digestion occurs in the

Bile is made in the pancreas and stored in the gallbladder.

The only function of the microvilli is to secrete digestive enzymes into the lumen of the small intestine.

All of the following aid in digestion except

Heartburn may result if the pyloric sphincter allows food to flow back into the esophagus from the stomach.

The enzymes from the are responsible for the digestion of almost all the fat, half the protein, and half the carbohydrate you eat.

The constrictive wave that involves both forward and reverse movements of chyme is referred to as peristalsis.

The hormone ghrelin signals the brain to

If you eat slowly, you may find you belch less frequently.

The GI tract is nearly 30 feet long in a cadaver; it is significantly longer in a living person.

Cholecystokinin

Describe what occurs in the small intestine.

The band of muscle between the esophagus and the stomach is the lower esophageal sphincter.