substance in blood and tissues which, in the presence of ionized calcium, aids in the conversion of prothrombin to thrombin. Extrinsic and intrinsic thromboplastin are formed as the result of the interaction of different clotting factors; the factors that combine to form extrinsic thromboplastin are not all derived from intravascular sources, whereas those that form intrinsic thromboplastin are.
why there may be large quantities of thromboplastin in blood after surgery.
liver
n
Thromboplastin -> Prothrombin -> Thrombin -> Fibrinogen -> Fibrin
True
Type your answer here... thromboplastin
A test to check your blood clotting.
In the final step of blood clotting cascade, Thromboplastin activates the prothrombin to Thrombin. Then the activated thrombin helps in the conversion of Fibrionogen into Fibrin (Mesh like fibrils which forms the clot).
Thromboplastin (protein) your welcome. -Eli Joe
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push to talk In medical settings PTT stands for partial thromboplastin time, and is a measurement of how long it takes the blood to clot.
PTT = Partial Thromboplastin Time (test). Don't know what and how 'head' relates to this.