Most strokes and heart attacks are caused by the abnormal clotting of blood in an unbroken vessel.Moreover,a piece of the __________ (clot)may break loose and begin to travel in the bloodstream as a(n)__________.
A) thrombus;embolus
B) embolism;thrombus
C) plaque;thrombus
D) thrombosis;plaque
E) plaque;embolus

Question

Quizplus · Accepted Answer

Thrombus refers to an abnormal clotting of blood in an unbroken vessel, while an embolus is a piece of the clot that breaks loose and begins to travel in the bloodstream. Therefore, the best choice is A, as it correctly identifies both terms and their relationship to each other.

Most Strokes and Heart Attacks Are Caused by the Abnormal