Human kidney
Kidneys consist of excretory tubules called nephrons. Kidneys play a vital role of processing waste products of metabolism. Blood is continuously being cycled through the kidneys in order to remove nitrogenous wastes. The removal of these wastes plays an integral role in maintaining homeostasis. The urinary system consists of kidneys, blood vessels and the various passageways that dump the wastes out of the body. The "dirty blood" that needs to be "cleaned" goes into the kidney through the renal artery and exits it through the renal vein. It undergoes the process of filtration. The waste product, termed urine exits the kidneys with the help of the ureter duct. The ureter drains all the urin in to the urinary bladder. During urination, the urine exits the body through the urethra. GLOMERULAR FILTRATION Blood in the glomerulus is separated from the space in the Bowman’s capsule by two thin cellular layers (glomerular endothelium cells and podocytes), whic...