sentences:  A greater source of such microemboli are caused by the suction of surgical debris and lipids into the CPB circuit.Microparticles obstruct arterioles that supply small nests of cells throughout the body and, together with cytotoxins, damage organs and tissues and temporarily disturb organ function.All aspects of cardiopulmonary bypass, including manipulation of the aorta by the surgeon, may be associated with neurological symptoms following perfusion.