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. thrombosis; plaque
B. plaque; thrombus
C. thrombus; embolus
D. embolism; thrombus
E. plaque; embolus
Answer: C
Anatomy & Physiology
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