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Hemostasis: Difference between revisions
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→Three Steps of Hemostasis
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When a person's blood vessels are damaged, hemostasis begins its three steps to arrest bleeding. The three steps are a '''vascular spasm''', a '''platelet plug''', and a '''coagulation'''. The explanation of a vascular spasm and a platelet plug is followed. However, the explanation of a coagulation will be located on a next section. | When a person's blood vessels are damaged, hemostasis begins its three steps to arrest bleeding. The three steps are a '''vascular spasm''', a '''platelet plug''', and a '''coagulation'''. The explanation of a vascular spasm and a platelet plug is followed. However, the explanation of a coagulation will be located on a next section. | ||
<br />{{ | <br />{{• A vascular spasm, a constriction of the damaged blood vessel, occurs at the site of injury. Vasoconstriction is initiated by the smooth muscle of the blood vessel in response to the injury and by nerve signals from pain receptors. | ||
• A vascular spasm, a constriction of the damaged blood vessel, occurs at the site of injury. Vasoconstriction is initiated by the smooth muscle of the blood vessel in response to the injury and by nerve signals from pain receptors. | |||
• A platelet plug, consisting of a mass of linked platelets, fills the hole in the damaged blood vessel. Platelet plug formation follows these steps: | • A platelet plug, consisting of a mass of linked platelets, fills the hole in the damaged blood vessel. Platelet plug formation follows these steps: | ||
