U.S. National Library of Medicine
Activated form of factor XI. In the intrinsic pathway, Factor XI is activated to XIa by factor XIIa in the presence of cofactor HMWK; (HIGH MOLECULAR WEIGHT KININOGEN). Factor XIa then activates factor IX to factor IXa in the presence of calcium.
The numerical value of factor xia in Chaldean Numerology is: 5
The numerical value of factor xia in Pythagorean Numerology is: 7
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