3. Reabsorb water
Water and ions are the next to be absorbed. It depends on how much is needed by the body.
If you have too little water in your blood, you will produce very concentrated urine.
(very little water in it)
If you have too much water in your blood, you will produce very dilute urine.
(lots of water in it)
5. Excrete the waste
Everything that is left in the kidney tubule is waste:
All the urea
This waste is called urine. It is excreted via the ureter and is stored in the bladder.
The “clean” blood leaves the kidney in the renal vein.
Urea is a waste product made in the LIVER
Water content of the body is controlled in the KIDNEYS
Urea, water and other waste makes up URINE.
Urine travels down the URETER and is stored in the BLADDER
Urine is excreted through the URETHRA.