What is the role of ANF in kidneys? How it acts antagonistically to the renin angiotensin system?

Explanation

Atrial Natriuretic factor: Excessive stretch of cardiac atrial cells cause an increase in blood flow to the atria of the heart and release Artial Natriuretic Peptide or factor (ANF) travels to the kidney where it increases `Na^(+)` excretion and increases the blood flow to the glomerulus, acting on the afferent glomerular arterioles as a vasodilator or on efferent arterioles as a vasoconstrictor. It decreases aldosterone release from the adrenal cortex and also decreases release of renin, thereby decreasing angiotensin II. ANF acts antagonistically to the renin-angiotensin system, aldosterone and vasopressin.