bowman's capsule structure. renal corpuscle filtering blood from

bowman anatomy illustration human nephron proximal glomerulus renal glomerular filtration kidney science capsule corpuscle tubule urinary blood biology urine arteriole diagram medical structure vector health glomeruli body artery healthy processed henle anatomical vessel loop duct system efferent medicine distal filter ultrafiltration afferent organ bowmans filtering cross section internal excretory studying