Describe the process of hemostasis

Describe the process of hemostasis, including the vascular phase, platelet phase, and coagulation phase, and the role of clotting factors and anticoagulants. Begin by explaining how blood vessel injury triggers vasoconstriction to reduce blood loss and expose collagen fibers, initiating platelet adhesion and activation. Elaborate on the platelet phase, where activated platelets release chemicals like thromboxane A2 and serotonin to recruit more platelets and form a platelet plug. Then, discuss the coagulation phase, involving the sequential activation of clotting factors to produce fibrin, which reinforces the platelet plug and forms a stable blood clot. Next, address the role of anticoagulants like heparin and protein C in inhibiting clot formation and preventing excessive clotting