How is oxygen and carbon dioxide transported in human beings?

Q. How is oxygen and carbon dioxide transported in human beings?

 

Answer:-

Oxygen and carbon dioxide are transported in human beings with a dedicated gas transportation system. This system is mainly composed of following parts:

Lungs: Lungs help in breathing in oxygen rich air and breathing out carbon dioxide rich air.



Heart: Heart pumps deoxygenated blood to lungs for oxygenation and pumps oxygenated blood to different organs of body.

Veins: Veins usually carry deoxygenated blood from different body parts to the heart. One exception is the pulmonary vein which carries oxygenated blood from lungs to heart.

Arteries: Arteries usually carry oxygenated blood from heart to different parts of the body. One exception is pulmonary artery which carries deoxygenated blood from heart to lungs.



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