Healthy Blood



Haemostasis ( Coagulation and Fibrinolysis )

Monday 9 October 2017


Related image

Hi and Assalamualaikum 😊

Today we would like to share with you about Blood Hemostasis!Do you know what means by haemostasis? Is it haemostasis has same meaning with homeostasis?😏Haemostasis is defined as stopping of bleeding from the blood vessels. However, homeostasis is defined  as the tendency towards a relatively stable equilibrium between interdependent elements of the human body.    

HEMOSTASIS.....



  • Vasoconstriction
  • Activation of platelets 
  • Formation of a blood clot


BLOOD CLOTHING PROCESS








A blood vessel is injured




The walls of the blood vessel contract to limit the flow of blood to the damaged area



Small blood cells called platelets stick to the site of injury and spread along the surface of the blood vessel to stop the bleeding.chemical signals are released from small sacs inside the platelets that attract other cells to the area and make them clump together to form what is called a platelet plug.


On the surface of these activated platelets, many different clotting factors work together in a series of complex chemical reactions (known as the coagulation cascade) to form a fibrin clot. The clot acts like a mesh to stop the bleeding.





Blood Clotting Summary

A prothrombin activator converts prothrombin into thrombin. Thrombin is an enzyme that converts fibrinogen into fibrin. Prothrombin and fibrinogen are proteins that are always present in our blood.



1)  COAGULATION CASCADE    🐦

The coagulation cascade is classified into three pathways the extrinsic pathway, the intrinsic pathway, and the common pathway.



Image result for COAGULATION CASCADE
2) FIBRINOLYSIS     


A summary of the blood clotting process




0 comments


Post a Comment