Exam 23: The Digestive System

The function of the hepatic portal circulation is to .

Short- chain triglycerides found in foods such as butterfat molecules in milk are split by a specific enzyme in preparation for absorption. Which of the following enzymes is responsible?

The circular folds of the small intestine enhance absorption by causing the chyme to spiral, rather than to move in a straight line, as it passes through the small intestine.

Figure 23.3Using Figure 23.3, match the following: -Why is it necessary for the stomach contents to be so acidic? How does the stomach protect itself from digestion?

Fats significantly delay the emptying of the stomach.

A patient has esophageal cancer and must have a feeding tube inserted. The nurse tells the patient that the tube will be inserted surgically into the duodenum. The patient's wife asks why the tube will not be inserted into the stomach. What should the nurse say?

Figure 23.3Using Figure 23.3, match the following: -Produces a mucoid barrier to prevent self- digestion.

Figure 23.3Using Figure 23.3, match the following: -Receives blood via the hepatic portal system.

Figure 23.3Using Figure 23.3, match the following: -Only digestive structure with three muscle layers.

Figure 23.1Using Figure 23.1, match the following: -Smooth muscle layer.

A 45- year- old patient was admitted to the hospital with a diagnosis of cirrhosis of the liver. He is thin and malnourished. His abdomen is very large due to an accumulation of fluid in the abdominal cavity. His lower extremities are very swollen. Explain why these changes have occurred.

Figure 23.2Using Figure 23.2, match the following: -Absorptive cells that line the intestinal tract.

You have just eaten a meal high in complex carbohydrates. Which of the following enzymes will help to digest the meal?

The ligament anchors a tooth in the alveolus of the jaw.

Another word for vomiting is .

The function of goblet cells is to _ .

Nervous control of gastric secretion is provided by .

How are most nutrients absorbed through the mucosa of the intestinal villa?

The contains lobules with sinusoids (lined with macrophages) that lead to a central venous structure.

The pancreas has both an endocrine and an exocrine function.