Bodily system that removes impurities and waste products from blood
Kidney contains over a million small units called nephrons
Kidney structure
Inner part called the medulla, outer part called the cortex
Ureter carries from kidneys to the bladder
Kidney is supplied by the renal artery and a renal vein takes blood away
Each kidney contains millions of kidney tubules or nephrons made up of a glomerulus, a region for selective reabsorption, and a kidney tubule for water and salt regulation
We have two kidneys, one on the left and one on the right, located in the lower back (lumbar) region
Route that blood takes to be purified
Blood containing impurities travels in the renal artery to the kidneys
The kidneys regulate the levels of salts, ions and urea in the blood - Any excess is sent to the ureter for excretion and eventually the bladder
The purified blood returns to the circulation by way of the renal vein
