Which Steroid is Secreted by the Adrenal Cortex to Increase

Question

Which steroid is secreted by the adrenal cortex to increase reabsorption of sodium ions?
A)Antidiuretic hormone
B)Aldosterone
C)Adrenalin
D)Angiotensin

Accepted Answer

Aldosterone is a steroid hormone secreted by the adrenal cortex which promotes the reabsorption of sodium ions from the nephrons back into the bloodstream. This leads to water reabsorption and an increase in blood volume and blood pressure. Antidiuretic hormone promotes water reabsorption, adrenaline is a catecholamine hormone that prepares the body for 'fight or flight' response, and angiotensin is a peptide hormone that stimulates the release of aldosterone.