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Portage A&P1 Module 3 Exam Practice Questions and Answers (100% Pass)
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Portage A&P1 Module 3 Exam Practice Questions and Answers (100% Pass)
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©PREP4EXAMS@2024 [REAL-EXAM-DUMPS] Monday, July 29, 2024 12:15 PMPortage A&P1 Module 3 Exam Practice
Questions and Answers (100% Pass)
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.
Explain in detail how the stomach contents enter the small intestine. - ✔️✔️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.
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: ___________ -
✔️✔️1: Liver 2: Pancreas 5: Duodenum (not small intestine) 6: Ileum (not small intestine)
8: Ascending colon (not large intestine)
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 - ✔️✔️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.
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, ©PREP4EXAMS@2024 [REAL-EXAM-DUMPS] Monday, July 29, 2024 12:15 PM
Explain which digestive system functions are carried out by the large intestine. -
✔️✔️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.
Note: Essay answers must clearly be in your own words.
Answer the following essay question:
Describe parietal cells and chief cells: name their location, secretions and purposes. -
✔️✔️The parietal cells (located in the wall of the stomach body) secrete hydrochloric acid,
generating a pH of 1.3-3.5. This very acidic pH kills many of the bacteria ingested along
with food. In addition, the low pH stops the activity of salivary amylase. The secretion of
hydrochloric acid is essential in the activation of pepsin.
Chief cells: secrete pepsinogen. Pepsinogen (a pre-enzyme) is secreted by the chief
cells in the stomach. Hydrochloric acid converts the inactive pepsinogen (secreted by
the chief cells) into the active enzyme pepsin which begins the breakdown of proteins.
Match the digestive organ with the one substance it produces:
a. large intestine
b. stomach
c. small intestine - ✔️✔️a. vitamin K
b. pepsinogen
c. secretin
What is the purpose of the hormone Ghrelin? - ✔️✔️increase hunger, decrease satiety
Which of the following statements is false?
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