Exam 23: The Digestive System

Figure 23.3Using Figure 23.3, match the following: -Main function is to filter and process the nutrient- rich blood delivered to it.

How is salivation controlled?

Figure 23.2Using Figure 23.2, match the following: -Structures that increase the absorptive area of the small intestine.

The intrinsic ability of visceral smooth muscle to exhibit the stress- relaxation response is termed plasticity.

Figure 23.2Using Figure 23.2, match the following: -Paneth cells are found here.

If an incision has to be made in the small intestine to remove an obstruction, the first layer of tissue to be cut is the .

Select the correct statement about the regulation of gastric secretion.

Choose the incorrect statement regarding bile.

Name the three pairs of major salivary glands. Describe their relative locations and their microscopic differences.

Figure 23.1Using Figure 23.1, match the following: -Continuation of the mesentery.

A woman is brought to an emergency room complaining of severe pain in her left iliac region. She claims previous episodes and says that the condition is worse when she is constipated, and is relieved by defecation. A large, tender mass is palpated in the left iliac fossa and a barium study reveals a large number of diverticula in her descending and sigmoid colon. What are diverticula, and what is believed to promote their formation? Does this woman have diverticulitis or diverticulosis? Explain.

Peyer's patches are found in the submucosa of the distal end of the small intestine.

The capillaries that nourish the epithelium and absorb digested nutrients lie in the .

Which of the following enzymes is specific for proteins?

Figure 23.3Using Figure 23.3, match the following: -Increases surface area for absorption via villi and microvilli.

The dental formula for an adult is 2- 1- 2- 3. What does the 1 stand for?

The stomach's contractile rhythm is set by pacemaker cells found in the spinal cord.

Which of the following is not characteristic of the large intestine? It .

A baby is admitted to the hospital with a history of projectile vomiting after each feeding. On examination, it is found that the sphincter controlling food passage from the stomach to the duodenum is thickened and does not open readily. Because of the baby's loss of gastric juice, his blood probably indicates .

Figure 23.3Using Figure 23.3, match the following: -Contains the brush border enzymes that complete digestion of carbohydrates and proteins.