Biology-Transport-Blood Clotting

1)When a blood vessel is damaged,the vessel will constrict to minimize blood loss.
2)Platelets then stick to collagen fibres of damaged vessel wall and clumping together.
3)The platelets and clotting factor work together to produce Thromboplastin/Trombokinase.
4)Thromboplastion+calcium ions+vitamin K,catalyse the change of Prothrombin to Thrombin
5)Thrombin then catalyse the conversion of fibrinogen to Fibrin
6)Fibrin-seal the wound,trap erthrocytes(red blood cell)and platelets.
7)Serum is blood plasma without Fibrinogen


Step by Step
Point by Point
Systematically