BIOD 151 Essential Human Anatomy and Physiology

Attempt History Attempt Time Score LATEST Attempt 1 47 minutes 40 out of 100 * * Some questions not yet graded Score for this quiz: 40 out of 100 * Submitted Aug 14 at 7:37am This attempt took 47 minutes. Question 1 Not yet graded / 5 pts Explain why someone who has hypergastrinemia (excessive secretion of gastrin) might develop gastric/stomach ulcers. Your Answer: hypergastrinemia which is excessive secretion of gastrin causes the acid secretions to be in excess leading to erosion of stomach lining hence the ulcers Gastrin stimulates the secretions of pepsinogens and hydrochloric acid. Excess amounts would lead to erosion of the stomach lining. 8/17/22, 8:43 PM 2/16 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: 2: 5: 6: 8: Question 3 Not yet graded / 10 pts Question 2 Not yet graded / 5 pts Explain in detail how the stomach contents enter the small intestine. Your Answer: food exits the stomach through the pyloric sphincter into the small intestine small amounts of chyme are released in cycles to the small intestine as the pyloric sphincter relaxes then contracts to close The pyloric sphincter (valve), located at the base of the stomach, relaxes causing a small quantity of chyme to pass through the opening into the first part of the small intestine. This initiates a reflex that causes the muscles of the sphincter to contract and close the opening temporarily. Then the sphincter relaxes again and allows more chyme to enter. 8/17/22, 8:43 PM 3/16 Your Answer: 1. liver 2. pancreas 5. duodenum 6. ileum 8. ascending colon 1: Liver 2: Pancreas 5: Duodenum (not small intestine) 6: Ileum (not small intestine) 8: Ascending colon (not large intestine) 8/17/22, 8:43 PM 4/16 Explain which digestive system functions are carried out by the large intestine. Your Answer: absorption of water, electrolytes and vitamins defecation where feces travel to the rectum for excretion Question 5 Not yet graded / 5 pts Question 4 Not yet graded / 5 pts A patient is experiencing vitamin toxicity. What type of vitamin most likely would be causing this toxicity? Explain your answer. A. Water soluble vitamin B. Fat soluble vitamin Your Answer: fat soluble vitamin bceause they are stored in the body and can be hard to get rid of in addition, too much accumulation of these vitamins causes toxicity B. Fat soluble vitamin. Fat soluble vitamins are stored within the body’s fat stores making it harder for the body to rid itself of them. 8/17/22, 8:43 PM 5/16 Note: Essay answers must clearly be in your own words. Answer the following essay question: Name and explain the four main functions performed by the digestive system. Your Answer: ingestion when food enters the mouth digestion - breaking down food using enzymes in the gut absorption - taking in digested food to the blood streak defecation - excretion of non digested food through the anus Question 6 Not yet graded / 10 pts Absorption: In the large intestine water and electrolytes are reabsorbed and vitamins are absorbed. Defecation: Feces travel to the rectum where it is excreted via the anus. 8/17/22, 8:43 PM 6/16 Match the digestive organ with the one substance it produces: Correctt! Pancreas Correctt! Liver Correctt! Mouth Question 7 4 / 4 pts Salivary amylase