"​Certain factor released by the tissue at the site of injury also can initiate coagulation"

 

Can someone try to explain me this "NCERT line with appropriate example " ?

Dear student.

The statement refers to the tissue factor (factor III) also known as platelet tissue factor. 

Tissue factor (factor III) can activate a number of other factors such as factor VII, VIIa etc, which ultimately initiates extrinsic pathway of coagulation at the site of injury. This pathway along with factor VII can initiate the overall clotting cascade mechanism.

Regards.

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