A soluble plasma protein that converts to fibrin during blood clotting, forming the mesh-like structure of blood clots. Normal levels range from 200-400 mg/dL.
From Latin 'fibra' (fiber) + Greek 'genes' (producing), literally meaning 'fiber producer.' Named in 1847 when scientists discovered this protein creates the fibrous threads that form clots.
Fibrinogen is like molecular yarn that gets woven into a net to catch blood cells! When thrombin cuts fibrinogen, it transforms from a soluble liquid protein into insoluble fibrin strands that can stretch up to 8 times their length.
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