What are the components of the transport system in human beings? What are the functions of these components?

Q. What are the components of the transport system in human beings? What are the functions of these components?

 

Answer:-



Transport system in human beings consists of heart, blood and blood vessels.
Functions:
Heart – Heart is a pumping organ to push and pull blood around the body. Heart receives the deoxygenated blood from various parts of the body. It sends this impure blood to lungs for oxygenation. Again after receiving pure blood from lungs it sends this oxygenated blood throughout the body.
Blood – It is a fluid connective tissue. It consists of: (a) plasma, (b) RBC, (c) WBC, and (d) blood platelets. Plasma transports food, CO2 and nitrogenous wastes in dissolved form. RBC transports respiratory gases and hormones. WBC protects the body from infections and platelets prevent the loss of blood at the time of injury by forming blood clots.
Blood vessels – There is a network of blood vessels which contain arteries, veins and capillaries. They help in the circulation of blood throughout the body.


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