MEDICAL PHYSIOLOGY

Detailed explanation-1: -1) Constriction of the blood vessel. 2) Formation of a temporary “platelet plug.” 3) Activation of the coagulation cascade.

Detailed explanation-2: -The second critical step in hemostasis, which follows vasoconstriction, is platelet plug formation. The three steps to platelet plug formation are platelet adherence, activation, and aggregation.

Detailed explanation-3: -Haemostasis is the physiological process by which bleeding ceases. Haemostasis involves three basic steps: vascular spasm, the formation of a platelet plug, and coagulation, by which clotting factors promote the formation of a fibrin clot. Fibrinolysis is the process in which a clot is degraded in a healing vessel.

Detailed explanation-4: -During hemostasis, a brief spasm of vasoconstriction occurs, which slows blood flow into the injured area while the clot forms. Vasoconstriction during hemostasis: Blood vessel experiencing vasoconstriction as its smooth muscle contracts while the blood clot forms.