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
how to burn more and more adipose tissues

The type of gene interaction in which effects of one gene override or mask the effects of other entirely different genes is known as: a) Mutation b) Linkage c) Pleitropy

Diagram of a cell surface membrane.  State the width of a cell surface membrane. (i) On which side of the membrane, shown in Figure, X or Y, is the cytoplasm of the cell?

What would happen to a cell if it was placed into a hypertonic solution? Into a hypotonic solution? What would happen to a cell if the cell itself was hypertonic to the solution?

What are the plant hormones? The Plant hormones also called as phytohormones, are the substances that control the embryonic development and the growth of the adult plant.

Define Casein - Tests for Presence of Exoenzymatic Activity? Casein is a major milk protein composed of various amino acids linked through peptide bonds. Extra-cellular enzyme

Q. What do you mean by Ventricular Arrhythmias? Considerable disagreement exists regarding the significance of resting ventricular ectopic beats. In study comparing the coronar

Q. Can we make artificial cells? Research in progress at the "National Aeronautical and Space Administration (NASA)" is focused on artificial cells as a means to deliver medici

Pocket Psedocyst : lesions present as endodontic origins from canals . It makes lumens resemble granuloma . All lesions lined until root canal or apical foramen communicat

External factors - Factors Controlling Metamorphosis in Insects In few cases an external factor may be accountable for initiating moulting, as for instance in the blood su