Plasma - Definition

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Plasma is a fluid component involved in tissue composition. This term is, however, mostly used to describe the fluid part of blood. Blood plasma serves as a transport for the three primary components of the blood: the red blood cells, or erythrocytes, white blood cells, or leukocytes, and thrombocytes, or blood platelets. Plasma is primarily made up of water, also containing nutrients, rejected matter from different biological reactions of the body, and proteins. It is possible to separate plasma from the solid constituents of blood by carrying out centrifugation. The fluid plasma is then used in the treatment of various diseases, administered via transfusion.

Platelets - Definition
Plasma cells - Definition