Biology - Osmoregulation and Excretion

Human Excretion

Excretion is the removal of TOXIC - metabolic - substances out of the body - these are urea (kidneys) and carbon dioxide (lungs). This done by thousands of nephrons in the kidney.

Order of nephron travelling - Blood from the Renal Artery goes into the glomerulus which creates glomerulus filtrate in the Bowman's Capsule. It then travels down the first convoluted tubule (distal convoluted tubule - ultra-filtration) and through the loop of Henle and then up the…