High School

Tissue factor is released after initiation in the:

A. Common pathway
B. Fibrinolytic pathway
C. Intrinsic pathway
D. Retraction pathway
E. Extrinsic pathway

Answer :

Final answer:

Tissue factor is released following the initiation in the extrinsic pathway. Therefore the correct option is E).

Explanation:

Following initiation in the extrinsic pathway of blood coagulation, the tissue factor, also known as factor III or thromboplastin is released. The extrinsic pathway is generally faster, beginning when damage occurs to the surrounding tissues, such as in a traumatic injury. Upon contact with blood plasma, the damaged extravascular cells, which are extrinsic to the bloodstream, release tissue factor which is important for clotting.

Eventually, this triggers a cascade of events leading to a common pathway that contributes to the formation of a blood clot. The intrinsic pathway and the common pathway are other parts of the clotting mechanism but the tissue factor is specific to the extrinsic pathway.

Learn more about Tissue Factor here:

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