The Heart Secretes the Hormone

Question

The heart secretes the hormone
A) progesterone.
B) oxytocin.
C) thymosin.
D) thyroxine.
E) atrial natriuretic peptide.

Accepted Answer

The hormone secreted by the heart is atrial natriuretic peptide (ANP). It is produced and released by the cells of the atria in response to an increase in blood volume and pressure. ANP acts to lower blood pressure and blood volume by increasing sodium and water excretion in the kidneys.