Vascular spasms, a part of process of hemostasis, limit blood loss during blood vessel injury.

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Vascular spasms, also known as vasoconstriction, are a part of the process of hemostasis and help to limit blood loss during blood vessel injury. When a blood vessel is damaged, the smooth muscle in the vessel wall contracts, which reduces the diameter of the vessel and restricts blood flow. This vasoconstriction can last for several minutes to several hours and is an important first step in the process of hemostasis.

Vascular Spasms, a Part of Process of Hemostasis, Limit Blood