PATHOLOGY

Detailed explanation-1: -The hormone vasopressin or antidiuretic hormone(AHD) is responsible for the direct control of water excretion in the kidney.

Detailed explanation-2: -Antidiuretic hormone (ADH), also known as vasopressin, is a small peptide hormone which regulates the body’s retention of water. It is one of only two hormones secreted by the posterior pituitary gland.

Detailed explanation-3: -Antidiuretic hormone is made by a part of the brain called the hypothalamus and is secreted into the blood by the pituitary gland. Certain types of tumors may release high amounts of antidiuretic hormone, which can cause low levels of sodium in the blood and the body to retain water.