Cell waste is discharged in the |veins| for excretion through the |kidneys|. The body circulates about 425 gallons of ~blood~ through the |kidneys| on a daily basis, but only about a thousandth of this is converted in ~urine~. The remainder goes back into circulation through the ~renal~ arteries. From the |Bowman's capsule|, the ~blood~ is carried through the compact network of |capillaries| that forms the |glomerulus| within the |capsule|. The |capillaries| eventually reconverge into small |venules| which lead to the larger |renal veins|. There are two |renal veins|, one extending from each |lobe| of the |kidney|, and opening into the vena cava.
