Following injury to blood vessels , immediate haemostasis is achieved by which of the following
ref Robbins 8/e p115 Vascular spasm (Vasoconstriction) -Vasoconstriction is produced by vascular smooth muscle cells, and is the blood vessel's first response to injury. ... When a blood vessel is damaged, there is an immediate reflex, initiated by local sympathetic pain receptors, which helps promote vasoconstriction
Fibrin deposition
Vasoconstriction
Platelets adhesion
Thrombosis
General anatomy