Blood Anatomy

Functions of the components of blood.

Plasma

  • Makes up 55% of blood.
  • Liquid portion of blood
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Erythrocytes

  • Red blood cells
  • make up approximately 45% of blood
  • No nucleus
  • Contain hemoglobin:binds to oxygen and carbon dioxide for transfer of gases
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Platelets

  • Cell fragments
  • Assist in blood clotting to prevent blood loss
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Leukocytes

  • White blood cells
  • Only blood cell containing a nucleus
  • Fight against disease and foreign substances
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