An arteriovenous fistula is a surgical anastomosis of an artery with a vein, bypassing the capillary bed, to allow the faster flow rates needed for hemodialysis. Similarly, an arteriovenous graft serves the same function but utilizes a synthetic tube, not the patient's naive blood vessels, to bridge arterial and venous flow while avoiding tiny capillaries.
how to explain this to a non medical person?
