Exam 23: The Digestive System

Chief cells .

Which of the following are types of papillae on the tongue that contain taste buds?

Hepatocytes do not _.

Most nutrients are absorbed through the mucosa of the intestinal villi by active transport.

Select the correct statement about digestive processes.

Figure 23.1Using Figure 23.1, match the following: -Name two regions of the digestive tract where mechanical food breakdown processes are very important. Name two organs that are primarily food conduits. Name the organ where protein digestion is begun. Name the organ where fat digestion begins.

Which of the following is not true of saliva?

Define constipation and diarrhea. Note possible causes of each.

Figure 23.3Using Figure 23.3, match the following: -Produces enzymes that break down all categories of foodstuffs.

The longest portion of the small intestine is the _.

Gastrin, histamine, endorphins, serotonin, cholecystokinin, and somatostatin are hormones or paracrines that are released directly into the lamina propria. Which of the following cell types synthesize and secrete these products?

What stomach secretion is necessary for normal hemoglobin production in RBCs?

What is bile and where is it produced? What is its digestive function? Where is it stored and concentrated?

Surgical cutting of the lingual frenulum would occur in which part of the body?

What is heartburn and what causes it?

The absorptive effectiveness of the small intestine is enhanced by increasing the surface area of the mucosal lining. Which of the following accomplish this task?

The ducts that deliver bile and pancreatic juice from the liver and pancreas, respectively, unite to form the .

The digestive function of the liver is to produce bile.

Gastric accommodation is an example of smooth muscle plasticity.

Digestion of which of the following would be affected the most if the liver were severely damaged?