The neurohypophysis of the pituitary gland secretes the anti-diuretic hormone. Because it stimulates the constriction of blood vessels and results in an increase in blood pressure, it is also called vasopressin.
Antidiuretic Hormone (ADH)
The anti-diuretic hormone acts to maintain blood pressure, blood volume and tissue water content by controlling water. Hence, the concentration of urine excreted by the kidney. It is made by special nerve cells found in an area at the base of the brain known as the hypothalamus. Several factors control the release of anti-diuretic hormone from the pituitary gland into the bloodstream.
- Low levels of the anti-diuretic hormone will cause the kidneys to excrete too much water.
- Low level can cause damage to the hypothalamus or pituitary gland
- Some tumours (particularly lung cancer) can produce anti-diuretic hormone.