Hemostasis Steps

Step 5: Fibrinolysis

After vessel is repaired, the clot is broken down by enzyme called plasmin.

Step 3: Coagulation

Enzymatic process requiring clotting factors and Ca2+

Step 1: Vascular Spasms

blood vessels constrict to slow blood loss

Step 4: Clot retraction and repair

platelets pull on fibrin making them contract (makes damaged vessel edges come closer together for healing)

Step 2: Platelet plug formation

platelets stick together to plug break