**Factor PTT** and factor XI
**PPt factors** are factors of the blood coagulation system (coagulation factors) - VIII (antihemophilic globulin), IX (Christmas disease - deficiency of factors VIII and IX), X (Plasma glucate), XI, XII (Antihemophilic protein B)
PPT - plasmin is an enzyme that lyses thrombin, destroys a blood clot (thrombus) and ensures the formation of fibrin. Fibrinolysis is the liberation of the body from blood clots that impede the blood supply to its organs and tissues.
*Causes of deficiency of factors II, VII, IX, X*
XII, XIII, XIV: The production of coagulation factors is determined by genetic sequence