 Emboli are abnormal masses of material (which can be solid, liquid or gas) that are carried in the blood stream from one part of the circulation to another causing a blockage (occlusion) of a blood vessel that leads to lack of oxygen supply (ischemia) and finally infarction of tissue downstream of the embolus.The most common type of emboli are a blood clot generated by thrombosis which has then broken off and is then transported in the blood stream (see embolism).There are two areas where emboli can form and therefore impact