define function of blood???
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a) supplying oxygen to cell and tissues
b) provide essential nutrition to cell
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Blood has three main functions: transport, protection and regulation.
Transport
Blood transports the following substances:
Gases, namely oxygen (O2) and carbon dioxide (CO2), between the lungs and rest of the body
Nutrients from the digestive tract and storage sites to the rest of the body
Waste products to be detoxified or removed by the liver and kidneys
Hormones from the glands in which they are produced to their target cells
Heat to the skin so as to help regulate body temperature
Protection
Blood has several roles in inflammation:
Leucocytes, or white blood cells, destroy invading microorganisms and cancer cells
Antibodies and other proteins destroy pathogenic substances
Platelet factors initiate blood clotting and help minimise blood loss.
Regulation
Blood helps regulate:
pH by interacting with acids and bases
Water balance by transferring water to and from tissues
Transport
Blood transports the following substances:
Gases, namely oxygen (O2) and carbon dioxide (CO2), between the lungs and rest of the body
Nutrients from the digestive tract and storage sites to the rest of the body
Waste products to be detoxified or removed by the liver and kidneys
Hormones from the glands in which they are produced to their target cells
Heat to the skin so as to help regulate body temperature
Protection
Blood has several roles in inflammation:
Leucocytes, or white blood cells, destroy invading microorganisms and cancer cells
Antibodies and other proteins destroy pathogenic substances
Platelet factors initiate blood clotting and help minimise blood loss.
Regulation
Blood helps regulate:
pH by interacting with acids and bases
Water balance by transferring water to and from tissues
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