Exam 21: The Digestive System

Rugae,plicae,and villi are all features that accomplish

The enteric nervous system and the brain have several similarities.What are they?

Cody has always carefully controlled her caloric intake,and is lean.During her unplanned pregnancy,she continued to eat the same,hoping that taking prenatal vitamins and minerals would ensure that her fetus would grow normally.Her only complication during pregnancy was persistent constipation and consequent hemorrhoids.She gained only the minimum weight suggested by her doctor,and delivered a healthy,full-term infant; her pre-pregnancy weight was rapidly reestablished.Propose an explanation for how she managed to gain enough weight,did not violate the law of conservation of mass,and for her only complication.What does this suggest about "eating for two" that some pregnant women do?

Match the hormone with the correct statement. -secreted by cells in the stomach

The ________ is a significant site of absorption of water and electrolytes,but NOT of nutrients.

A blockage of the ducts from the parotid glands would

The largest collection of ________ tissue in the body is the gut-associated lymphoid tissue (GALT).

Match the following structures with the appropriate description. -location of most peptic ulcers

During the cephalic phase of gastric secretion,

Most absorbed nutrients first enter the blood of the ________ system.

In some severe cases,a person suffering from stomach ulcers may have surgery to cut the branches of the vagus nerve that innervates the stomach.How would this help the problem?