Plasma:The liquid component of blood in which blood cells are suspended before clotting takes place, containing water, salts, enzymes, antibodies, and other proteins.
Coagulation:The process of blood changing from a liquid to a gel, forming a blood clot which is crucial for preventing excessive bleeding.
Antigen: Any substance that causes your immune system to produce antibodies against it; this can include bacteria, viruses, or foreign substances like chemicals