Emboli:Something that travels through the bloodstream, lodgesinabloodvesseland blocks it. Examples ofemboliare a detached blood clot, a clump of细菌, and foreign material such as air.
Pulmonaryemboli are blood clots that have been carried through the blood into the肺动脉(the main blood vessel from the heart to the lung) or one of its branches, plugging that vessel.
Emboli is the plural ofembolus, a word that comes from the Greek "embolos" meaning a wedge or plug. "Embolos" was derived from "en" (in) + "ballein" (to throw) so emboli are something thrown in.
