Step By Step Process Of Urine Formation In The Kidneys
By. Ally Frierson
First things first...Kidneys...They are the organs that do all the heavy duty stuff like...
There is a hormone used to retain water called Anti-Diuretic Hormone (ADH) This hormone is released by the pituitary gland which travels to the kidneys and sends a message to absorb more water...which in turn produces less urine
-Maintains levels of water and dissolved materials -Controls blood pressure
Blood from the heart enters the kidneys through renal arteries. The kidneys filters fluids out of our blood then re-absorbs 99% of it back... then sends the 1% on it's way in the form of urine. Kidneys have a network of tiny filtering structures called Nephrons...Each kidney has a million of these nephrons. As blood is entering it's forced into a system of tiny capillaries until it enters the glomerulus.
The pressure in the glomerulus is high enough to the point, which it squeezes about 20% of the fluid out of the blood into the Bowman's capsule...This fluid that is squeezed out is not blood but is called Filtrate...Filtrate is made up of water, urea, some smaller molecules and ions...(Urea is waste product created when the liver breaks down proteins).
Next step...? All this, the filtrate flows into the Renal tubule. From here the filtrate enters the loop of Henle.
Step Four...Final Step
After all that is done...the urine moves to the ureters, then bladder then finally leaves the body and travels out the urethra.