Describe Autoregulation of your kidney when water volume is low in your body??
Answers
when there is low volume of water in body ...
the impulse from kidney goes to neurohypophysis resulting to releasa of hormone ADH ...anti diuretic hormone..
ADH acts on DCT of nephron ..resulting in reabsorption of water...
it's the autoregulation by kidney
Autoregulation Of Kidney -
》When a person doesn't drink water for many hours it results in low blood volume which in turn results in low Glomerular Filtration Rate.
》Low GFR triggers Juxtaglomerular Apparatus to release renin.
》Renin acts upon Angiotensinogen (inactive form produced by Liver) and converts it into Angiotensin I.
》Angiotensin I is also inactive form. It is converted into active form called Angiotensin II
》Angiotensin II constricts the efferent arteriole and makes it narrower to store the filtrate in the Glomerulus thus bringing back the normal volume water.
》It also sends positive feedback to Hypothalamus which in turn triggers Posterior Pituitary Gland to release Anti Diuretic Hormone (ADH) or Vasopressin.
》It also triggers adrenal gland to release Aldosterone.
》ADH and Aldosterone starts conditional reabsorption and thus brings back the volume of water to normal level.