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Question

Which of following responses would you expect to see in response to high blood volume?

A
Increased secretion of Atrial natriuretic peptide (ANP)
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B
Increased secretion of antidiuretic hormone
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C
Decreased secretion of renin, angiotensin and aldosterone
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D
Both A and C
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Solution

The correct option is D Both A and C
In response to high blood volume, secretion of ADH and ANP will increase, lowering blood volume. ADH constantly regulates and balances the amount of water in your blood. It is released by muscle cells in the upper chambers (atria) of the heart (atrial myocytes) in response to high blood volume. ANP acts to reduce the water, sodium and adipose loads on the circulatory system, thereby reducing blood pressure.

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