Exam 21: The Digestive System

Features of the submucosa include

A drug that blocks the action of carbonic anhydrase in parietal cells would result in

Digestion is essentially completed in the ________.

Short reflexes of the digestive system are integrated in the ________.

Match the structure to its function. -Carbohydrate digestion begins here.

Essential nutrients are those that our cells require but cannot make,and thus they must be present in the diet.Only some amino acids and some fatty acids are essential.What does that suggest about extreme diets that eliminate fats or proteins? What does that suggest about our carbohydrate intake? Describe the typical American diet,in terms of relative amounts of ingested carbohydrates,fats,proteins,and nucleic acids.Propose some explanations for why one of those is predominant.

Match the following structures with their functions. -chyme is released from here

The release of many GI tract hormones is stimulated by a particular food or substance.Which hormone is INCORRECTLY paired with its stimulus?

Match the structure to its function. -Fat digestion begins here.

________ are short segments of intestine that alternately contract and relax.They are responsible for ________.

The enzyme that digests starch into disaccharides and trisaccharides is ________.

Match each product with the cell or region that secretes or contains it. -parietal cells

Match the structure or compound to its function. -blocks cholesterol absorption

________ is a protein cofactor that is secreted by the pancreas and that allows lipases to access fats inside the bile coating.

Bile salts aid in the digestion of fats by ________ large fat droplets.

Chemical digestion refers to

Match the structure or compound to its function. -transporter for cholesterol absorption

Name two functions of cholecystokinin.

Bile is produced in the ________ and stored in the ________.

The three sections of the small intestine,in order according to movement of its contents,are ________,________,and ________.