Diagram of a nephron,the functional unit of excretion in the human kidney. Blood circulating in branches of the renal artery (red) is filtered through a knot of capillaries (the glomerulus,red knot) into the surrounding Bowman's capsule (green,cup-shaped). Water,nitrogenous waste & other substances pass into the proximal renal tubule (green) where most substances are re- absorbed back into the blood. The remaining fluid,now termed urine,passes through the distal convoluted tubule (bending,yellow section) and into the collecting duct (right) which drains into the ureter & eventually reaches the urinary bladder | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Gifford, David |
Bildgröße: | 3561 px × 4899 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |