The vascular system acts to prevent bleeding by which mechanism(s)?

Question

Quizplus · Accepted Answer

The vascular system prevents bleeding through a combination of mechanisms: vasoconstriction and reflex stimulation of adjacent vessels to reduce blood flow to the injured area (A), diversion of blood flow around damaged vasculature to maintain circulation (B), initiation of contact-activation of platelets leading to their aggregation at the site of injury to form a temporary plug (C), and contact-activation of the coagulation system, resulting in fibrin formation to stabilize the platelet plug (D). All these mechanisms work together to prevent blood loss and facilitate wound healing.

The Vascular System Acts to Prevent Bleeding by Which Mechanism(s)