Question: Hydrochloric acid secreted in the stomach lowers the pH of chyme.

Answer Options: True False

Answer: True. 80.

Question: The basic structure of the GI wall consists of _____ main layers.

Answer Options: Two Three Four Five

Answer: Four. 81.

Question: Exocrine functions of the pancreas include producing and releasing enzymes needed for digestion of carbohydrates, proteins, and lipids.

Answer Options: True False

Answer: True. 82.

Question: _____ allows fat and water to mix in the intestine.

Answer Options: Amylase Bile Pepsin Lipase

Answer: Bile. 83.

Question: The arrow in the duodenal micrograph is pointing toward a _____ cell.

Answer Options: Acinar Foveolar Goblet Simple columnar

Answer: Goblet cell. 84.

Question: The arrow in the virtual model indicates the _____ of the digestive system.

Answer Options: Cecum Duodenum Gallbladder Esophagus

Answer: Cecum. 85.

Question: The enzymes α-amylase and pancreatin function more effectively at 37°C than at room temperature.

Answer Options: True False

Answer: True. 86.

Question: Explain the physiological similarities and differences between a vasectomy and castration.

Answer Options: N/A

Answer: A vasectomy blocks sperm from entering semen but leaves testosterone production intact. Castration removes or destroys the testes and greatly reduces testosterone production. Lymphatic System 87.