MICROANATOMY

Detailed explanation-1: -Vasopressin is also called “anti-diuretic hormone” that is normally secreted by the pituitary gland. Vasopressin acts on the kidneys and blood vessels. Vasopressin helps prevent loss of water from the body by reducing urine output and helping the kidneys reabsorb water into the body.

Detailed explanation-2: -Vasopressin and Regulation of Osmolality. The primary physiologic action of vasopressin is its function as a water-retaining hormone.

Detailed explanation-3: -In general, vasopressin decreases water excretion by the kidneys by increasing water reabsorption in the collecting ducts, hence its other name of antidiuretic hormone. Vasopressin also has a potent constricting effect on arterioles throughout the body.