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:<3:CIRCULATORY SYSTEM aka CARDIOVASCULAR SYSTEM :<3: (HEART :…

- - - - Heart Attack: Lack in oxygen and nutrients that causes heart muscles to die
- - - - Engulfs bacteria
    - - produces antibodies
    - - -colourless
        -no haemoglobin
        -irregular shape
        -contains a nucleus
        -flexible
  - - - .Soluble proteins-fibrinogen
        .Dissovled mineral salts -hydrogencarbonates
        .Food Substances-glucose,amino acids
        .Excretory products- urea,uric acid
        .Hormones-insulin
  - - - .Digested food
        .Excretory products
        .Hormones
        .Heat
        .Oxygen
    - - 1.Damaged tissues and platelets produces Thrombokinase
      - Thrombokinase and calcium ions converts Prothrombin(inactive) into thrombin
      - 3.Thrombin catalyses Fibrinogen to insoluble fibrin threads form a mesh to trap blood cells
- - - - Withstand HIGH pressure
  - - - LOW pressure
    - - Prevents backflow of blood