In the Renin-Angiotensin-Aldosterone Pathway That Regulates Blood Pressure,renin Is Controlled

question 9

Multiple Choice

In the renin-angiotensin-aldosterone pathway that regulates blood pressure,renin is controlled in the following ways EXCEPT

• A)juxtaglomerular cells themselves can sense pressure changes and release renin when blood pressure declines.
• B)decreases in blood pressure activate sympathetic neurons in the medulla oblongata,triggering renin secretion.
• C)macula densa cells in the wall of the distal tubule respond to a decrease in urine flow and Na⁺ delivery by releasing a paracrine signal that leads to renin secretion.
• D)decreased perfusion of the lung leads to the production of angiotensin-converting enzyme,or ACE,that directly leads to renin secretion.

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