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The human blood

The human blood carries out various important functions for the body. Read on to find out why they are important.
© Universiti Malaya

What is blood?

Blood is the life-maintaining fluid that circulates through the entire body. Blood delivers essential substances like oxygen and nutrients to the body’s cells. It also transports metabolic waste products away from those same cells.

What is the function of blood?

Blood carries the following to the body tissues:

  • Oxygen
  • Immune cells (cells that fight infection)
  • Vitamins
  • Antibodies
  • Nourishment
  • Electrolytes
  • Hormones
  • Heat

Blood carries the following away from the body tissues:

  • Waste matter
  • Carbon dioxide
© Universiti Malaya
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Human Blood and Blood Functions

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