Most Impoant hormone responsible for volume maintenance?
Ans. is 'c' i.e., ADH[Rel Principles of medical physiology p. 412; Ganong 2,{h/e p. 7041"Despite its effect on Na* and water reabsorption, aldosterone k a weak regulator of boily Na+ and water balance, the majorregulator being the 'thirst-ADH' mechanism, Aldosterone k the sole regulator of external potassium balance'.- Principles of medical physiology
Aldosterone
Angiotensin
ADH
Renin