Image of a kidney with labels pointing to an artery that carries blood with wastes into the kidney, a vein that carries clean blood away from the kidney, and the ureter, which carries wastes and extra water as urine to the bladder. An inset shows an enlarged view of a nephron, in which a tiny blood vessel, the glomerulus, intertwines with the urine-collecting tubule.

Line illustration of a man being treated with hemodialysis. Labels point to two tubes, one that carries blood from the man's arm to the hemodialysis machine and a second that carries filtered blood back to the man's arm. Another label points to the hemodialyzer, a canister where the filtering takes place.

Line illustration of a person being treated with peritoneal dialysis. Labels point to the bag of dialysate hanging on a stand, the catheter, the peritoneum, and the abdominal cavity.

Line diagram of a transplanted kidney. Labels point to shrunken, diseased kidneys, a larger transplanted kidney with connections to an artery and a vein, and a transplanted ureter that carries urine from the new kidney to the bladder.