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Atrial natriuretic peptide

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A peptide released from the atrial heart muscle cells due to atrial distention, hypertension, and hypervolemia.


The atrial natriuretic peptide is a potent vasodilator and contributes in the development of natriuresis. It functions in the homeostatic regulation of body water, sodium, potassium, and fat to lower blood pressure.

Abbreviation: ANP