Question

What triggers the release of antidiuretic hormone?

Answer 1

Antidiuretic hormone:

1. The hormone is released by the anterior pituitary in response to changes in body fluid or ions concentration.
2. The hormone is mainly involved in regulating and balancing the quantity of water in the blood.

Antidiuretic hormone is triggered by :

1. The secretion of ADH is triggered by specialized cells of the brain or heart that detect changes in blood pressure.
2. The ADH is also secreted in response to high blood osmolarity, which occurs during dehydration or taking a salty meal, then the osmoreceptors signal the posterior pituitary to release antidiuretic hormone (ADH).
3. An excessive loss of fluid from the body activates the receptors in Hypothalamus to release ADH which facilitates the reabsorption of water from the kidneys.
4. An increase in body fluid volume turns off the receptors to suppress the release of ADH.