Components of Blood

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  • Components of Blood
    • Plasma
      • Straw coloured liquid
      • Main component of blood
      • Consists largely of water
      • Contains range of dissolved substances to be transported
      • Fibrinogen
    • Erythrocytes
      • Biconcave discs
      • Contain haemoglobin
        • Red pigment
        • Carries oxygen
      • Formed in red bone marrow
        • Short bones
          • Ribs
      • Limited life of 120 days
    • Leucocytes
      • Larger than erythrocytes
      • Contain nucleus
      • Colourless cytoplasm
      • Formed in white bone marrow
        • Long bones
          • Humerus, Femur
    • Platelets
      • Tiny fragments of large cells
        • Megakaryocytes
      • Found in bone marrow
      • Involved in blood clotting

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