Biology > EXAM > Portage Learning BIOD 151 Module 3 Exam Study Guide New Questions and Answers 2022-2023!Rated A+ Ans (All)

Portage Learning BIOD 151 Module 3 Exam Study Guide New Questions and Answers 2022-2023!Rated A+ Answers

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Question 1 5 / 5 pts Explain why someone who has hypergastrinemia (excessive secretion of gastrin) might develop gastric/stomach ulcers. Your Answer: Gastrin stimulates the secretaion of pepsinogenes ... and HCL. If it is excess amounr that means it would be lead to erosion of the stomach. Gastrin stimulates the secretions of pepsinogens and hydrochloric acid. Excess amounts would lead to erosion of the stomach lining. Question 2 5 / 5 pts Explain in detail how the stomach contents enter the small intestine. Your Answer: There is the pyloric sphincter at thebase of stomach. Therefore, this valve relaxes causing a small quantity of chyme to pass the opening into the first part of small intestine. And then, this initiates a reflex. That is why the muscles of the sphincter to contrcat and close the openinf temporarily. After sphincter relaxes again and it allows more chyme to enter. 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 [Show More]

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