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Physiology

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Respiration

Question
15 out of 33
 

Which of the following is the best-known metabolic function of the lung?



A Inactivation of serotonin

B Conversion of angiotensin I to angiotensin II

C Inactivation of bradykinin

D Metabolism of basic drugs by cytochrome P450

system

Ans. B Conversion of angiotensin I to angiotensin II

a. The lungs also activate one hormone; physiologically inactive angiotensin lis converted into the pressor, aldosterone stimulating angiotensin II in the pulmonary circulation.

b. Large amounts of angiotensin-converting enzyme (ACE) responsible for this activation are located on the surface of the endothelial cells of the pulmonary capillaries.

Respiration Flashcard List

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