extrinsic pathway


extrinsic pathway

Hematology The arm of coagulation activation which, like the intrinsic pathway, converges on the common pathway, ie factor X activation; the EP is activated by exposure of blood to tissue factor, circulating factor VII, Ca2+ and phospholipid. Cf Common pathway, Intrinsic pathway.

Extrinsic pathway

One of three pathways in the coagulation cascade.Mentioned in: Partial Thromboplastin Time