Elements of the blood

?
  • Created by: eve700
  • Created on: 28-11-21 18:29
View mindmap
  • Elements of the blood
    • Red blood cells
      • They carry oxygen from the lungs to all the other cells in the body.
      • They have a large surface area (more room to carry oxygen)
        • Biconcave disc shape and no nucleus (to increase surface area)
      • They contain haemoglobin which binds to oxygen in the lungs (oxyhaemogl-obin)
        • This splits to haemoglobin and oxygen in body tissues to release oxygen to cells
    • White blood cells
      • Phagocytes
        • These change shape to engulf foreign micro organisms- phagocytosis
      • Lymphocytes
        • These produce antibodies to fight against foreign cells
          • When you have an infection, your white blood cells multiply, so a blood test will show a high white blood cell count.
    • Platelets
      • Platelets help the blood clot
        • The blood will clot at a wound and stop micro- organisms from getting in
      • They are small fragments of cells that have no nucleus
      • Lack of platelets cause excessive bleeding and bruising
    • Plasma
      • The liquid that carries everything in blood
        • Red blood cells, white blood cells and platelets
        • Nutrients (glucose) and amino acids
        • Carbon dioxide
        • Urea
        • Hormones and proteins
        • Antibodies and antitoxins produced by white blood cells

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Circulation resources »