12 major functions of blood in human body

Here are the common Functions of Blood :

- Blood is important in the transport of oxygen to all parts of the body.
- Blood also transport the carbon dioxide from the tissue of the body to lungs.
- Blood is responsible for taking digested food from the alimentary canal (gut) to all cells of the body.

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- Bloods contains immunoglobins or antibodies which combat antigens and disease-causing micro-organisms.
- All endocrine glands pour their hormones into the blood which are then taken by blood to all parts of the body.
- Blood maintains the vital salt and water balance of the tissues and cells and also keeps osmotic pressure.
- Insulin pressure in the blood helps the cells to take up glucose and use it.
- The waste products of the body like urea, excessive salts metabolites and drugs are taken by blood to kidneys from where they are excreted.

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Blood circulation provides pressure for the kidneys to filter out harmful and surplus substances of the body.
Blood contains proteins for clotting of the blood.
White blood cells engulf or eat up damaged cells, bacteria, and other foreign particles.
White blood cells help in the healing of the wounds.