Exam 23: The Digestive System

Jose is brought to the emergency room complaining of a burning sensation in his chest, increased salivation, and difficulty in swallowing. He is having difficulty breathing and feels the presence of a "lump in his throat." The diagnosis is gastroesophageal reflux disease. Explain.

The lamina propria is composed of _.

Select the correct statement about absorption.

Ionic iron is actively transported into the mucosal cells, where it binds to the protein ferritin, a phenomenon called the mucosal iron barrier.

Which of the following is (are) not important as a stimulus in the gastric phase of gastric secretion?

The relatively unchanging pressure in a filling stomach is due to the contraction of the stomach oblique muscle layer.

The only essential function of the stomach is to begin the digestion of proteins.

Figure 23.1Using Figure 23.1, match the following: -The phase of gastric secretions occurs when food enters the stomach.

Which of the following is not a phase of gastric secretion?

Figure 23.1Using Figure 23.1, match the following: -Compare and contrast the structure and function of a premolar and a molar.

Assume you have been chewing a piece of bread for 5 or 6 minutes. How would you expect its taste to change during this time? Why?

Mumps is an inflammation of the parotid glands caused by myxovirus.

Which of these is not part of the splanchnic circulation?

Parietal cells of the stomach produce .

Mrs. Wong goes to the emergency room with the following symptoms: severe pain in the umbilical region, loss of appetite, nausea, and vomiting. While she was waiting to see a doctor, the pain moved to the lower right abdominal quadrant. What is the likely diagnosis and treatment?

Which of the following is an essential role played by large intestine bacteria?

Chyme is created in the .

When we ingest large molecules such as lipids, carbohydrates, and proteins, they must undergo catabolic reactions whereby enzymes split these molecules. This series of reactions is called )

Sami has been hospitalized with acute gastritis. Her symptoms were epigastric pressure (just above the stomach), headache, nausea, and vomiting with traces of old dark blood. She revealed that she had been suffering back pain and drank four shots of gin and took three aspirin to "kill the pain." What led the physician to make this diagnosis, and what may have caused the sudden attack?

There are some 20 known pathogens found in the large intestine; our Ig Antibody- mediated response restricts them from going beyond the mucosa and causing problems.