Mechanism of blood coagulation, Biology

GENERAL MECHANISM OF BLOOD COAGULATION -

All researchers agree that blood clotting is a cascade mechanism and involves three essential steps - (a) Formation of prothrombin activator. It is formed in two ways :

Extrinsic pathway -

 

359_extrinsic pathway of blood coagulation.png

Intrinsic pathway

 

781_intrinsic pathway of blood coagulation.png

(b) Conversion of prothrombin into thrombin -

1273_blood coagulation.png

(c) Conversion of fibrinogen into fibrin -

                            Thrombin

Fibrinogen                                                         Fibrin Threads (insoluble) 

(soluble)

Fibrin threads form a meshwork which traps blood cells and platelets to form a clot so the process is called blood clotting. Within a few minutes, the clot begins to contract and a pale coloured fluid called serum is discharged. This is called clot-retraction.

Posted Date: 10/1/2012 3:34:15 AM | Location : United States







Related Discussions:- Mechanism of blood coagulation, Assignment Help, Ask Question on Mechanism of blood coagulation, Get Answer, Expert's Help, Mechanism of blood coagulation Discussions

Write discussion on Mechanism of blood coagulation
Your posts are moderated
Related Questions
Q. What are some prophylactic measures for tapeworm infections? The major prophylactic measures against the taeniasis and the cysticercosis are not to ingest raw or badly cooke

Q. Foods for phenylketonuria patient? The majority of foods for a PKU patient should come from the bottom half of the pyramid. As you may have observed, this contains the pheny

types of excretory system of lower animals

What do enzymes do to a reaction? Indicate all that are correct. a. Lower the activation energy b. Reverse the equilibrium c. Lower the equilibrium d. Increase the reac


Double helical structure of dna

What is mutualism? Mutualism is the ecological interaction in which both participants advantage and that is obligatory for their survival. Mutualism is a harmonious (positive)

List the advantages of IOPA and OPG a) Advantages of IOPA are as follows  It is a useful high yield modality for ruling out local bone or dental disease  It is of value

Q. How are the three major arthropod classes characterized according to the number of limbs? Most crustaceans have five pairs of limbs. Arachnids present four pairs and Insects

Organ level -Level of body organization When organs work together to perform a specific function we have the highest level of body organization i.e. the organ system level of bo