Plasma

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Plasma

  • Plasma and formed elements stay mixed in circulating blood.
  • When centrifuged (or spun down), blood is separated into plasma, and formed elements including red blood cells. The plasma separator tube shown here has a barrier to maintain separation of plasma and cellular elements during centrifugation and storage.
  • The red cell layer also includes a relatively small amount of platelets and white blood cells, not visible in the photo on the right.