Tissue Factor (Factor III) is a Factor in the ________

Question

Tissue factor (Factor III) is a factor in the ________ pathway.
A) extrinsic
B) intrinsic
C) common
D) retraction
E) fibrinolytic

Accepted Answer

Tissue factor is also known as thromboplastin and is only present outside of the bloodstream. The extrinsic pathway is initiated by the exposure of tissue factor to the bloodstream, which activates the pathway leading to the formation of a blood clot.