HEART -
The cells called cardiocytes of atria of the heart secrete peptide hormone called atrial natriuretic factor (ANF) in response of an increased return of the deoxygenated (venous) blood.
ANF inhibits the release of renin from juxtaglomemlar apparatus and there by, inhibits NaCl reabsorption by the collecting duct and reduces aldosterone release from the adrenal gland.