Functions of aldosterone:
1. Aldosterone
in essential for life. Total loss of adrenocortical secretion usually causes
within 3 days to 2 weeks.
2. Aldosterone
increase renal tubular reabsobtion of Na+
3. Aldosterone
increase renal tubular secretion of K+
4. Aldosterone
increase extracellular fluid volume and arterial pressure.
5. Aldosterone
increase tubular secretion of H+
6. Aldosterone
stimulate Na+ & K+ transport in sweat glands,
salivary glands and intestinal epithelial cells.
Function of ANP:
As a result of volume expansion,
atrial muscle stretched and release ANP, which has effect on kidney. It increase
GFR thus increase renal excretion of Na+ & water.
