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Body Fluids and Circulation

  • Need For transport Inside Our Body

  • Digestive System
  • Excretory System
  • Endocrine System
  • Respiratory System


  • Blood is a red-coloured fluid connective tissue.

  • It helps in transportation of nutrients and oxygen from one organ to another.
    Functions of Blood

  • Transportation by blood
    • Transport of Digested Food
    • Transport of Oxygen
    • Transport of Carbon
    • Transport of Excretory material
    • Distribution of harmones from endocrine glands
    • Distribution of heat throughout the body.
  • Protection by blood
    • Formation of Clot in cases of cut
    • Preventing Blood loss
    • Protecting body from bacteria
    • Production of antitoxins and antibodies
  • Haemoglobin : The chief constituent of RBCs.These are present inside stroma - a spongy body of RBCs.
  • Carbon monoxide Poisoning-Haemoglobin has high affinity towards carbon monoxide as it forms a more stable compound carboxyhaemoglobin(HbCO).
  • Blood comprises of plasma (55%) and formed elements (45%).

  • Plasma is a straw-coloured viscous fluid.

  • Protein contribution in plasma is about 6-8% and the rest about 90-92% is water. Three

    major proteins present in plasma are: fibrinogen, globulin and albumins – Maintain the osmotic balance of the body.

  • Plasma without the …

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