Question

In: Anatomy and Physiology

Blood vessel spasms following injury are stimulated by. Ans choice A: release of heparin from eosinophils...

Blood vessel spasms following injury are stimulated by. Ans choice A: release of heparin from eosinophils B: the formation of fibrin clots C: serotonin release from platelets D: all of the above

Solutions

Expert Solution

ANSWER: C.Serotonin release from platelets

EXPLANATION:

Hemostasis is a process which causes bleeding to stop

it has 3 steps 1.vasoconstriction 2.platelet plug formation 3.blood coagulation or formation of fibrin clot

Vasoconstriction in which the smooth muscle in the vessel walls undergo intense contractions and increases blood pressure of affected vessel wall

if the vessels are small,spasms compress the inner walls together and may able to stop bleeding completely which is stimulated  by the platelets from serotonin.


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