Factor XI or plasma thromboplastin antecedent is the zymogen form of factor XIa, one of the enzymes of the coagulation cascade. Like many other coagulation factors, it is a serine protease.
factor xi meaning: Noun: factor XI Coagulation factor whose deficiency results in a hemorrhagic tendency - plasma thromboplastin antecedent Type of: clotting factor , coagulation factor Encyclopedia: ...factor xi artinya:faktor ptafactor xi перевод:Фактор свёртывания крови XI