BIOD 151 1 digestive system Questions and Answers

1. Explain why someone who has hypergastrinemia (excessive secretion of gastrin) might thesmall intestine or duodenum. Answer Key Note: Essay answers must clearly be in your own words. All multiple choice questions have one answer unless otherwise specified. Choose the best response with the information provided. Answer the following two questions: 1. Explain why someone who has hypergastrinemia (excessive secretion of gastrin) might develop gastric/stomach ulcers. Gastrin stimulates the secretions of pepsinogens and hydrochloric acid. Excess amounts would lead to erosion of the stomach lining. 2. Fill in the four blanks: Food enters the stomach from the esophagus via the cardioesophageal sphincter (or lower esophageal sphincter/ LES) sphincter. Food exits the stomach via the pyloric sphincter into the small intestine (or duodenum) . Exam Page 2 Look carefully at the diagram below. Label the following 5 organs of the digestive system. To receive credit for the intestines you must label the specific region. 1: Liver 2: Pancreas 5: Duodenum 6: Ileum 8: Ascending colon Answer Key Look carefully at the diagram below. Label the following 5 organs of the digestive system. To receive credit for the intestines you must label the specific region. 1: Liver 2: Pancreas 5: Duodenum (not small intestine) 6: Ileum (not small intestine) 8: Ascending colon (not large intestine)