When capillaries rupture, the mechanism of hemostasis that will be effective is:
A)platelet plugs
B)chemical clotting
C)vascular spasm
D)These will all work equally well.

Question

Quizplus · Accepted Answer

Platelet plugs are the first line of defense in hemostasis when a capillary ruptures. Platelets are attracted to the site of injury and adhere to the exposed collagen fibers in the damaged blood vessel. They then aggregate and release chemicals that activate other platelets, forming a plug that stops the bleeding. Chemical clotting and vascular spasm may also be involved in hemostasis but are not as effective as platelet plugs in the case of capillary rupture.

When Capillaries Rupture, the Mechanism of Hemostasis That Will Be