Atrial Natriuretic Factor (ANF) is secreted by

neuronal walls

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stomach walls

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atrial walls

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pleural membrane

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Solution

The correct option is C atrial walls
ANF is a peptide hormone which is secreted by the atrial wall of the heart to reduce the blood pressure.

When the blood pressure is increased, it results in the dilation of the blood vessels.

It acts on the kidney to increase sodium excretion and glomerular filtration rate and to inhibit renin secretion.

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