Friends ! Our body works just like a machine . As a machine has different parts and all parts of the machine should be in good condition for the proper functionality of the machine so as our body is made of a no. of parts and likewise functionality of these parts affects the whole body system.
Our body has been divided into a no. of systems depending upon their functions like Nervous System controls all the nerves of the body and Respiratory System controls the passage of oxygen and carbondioxide along with some other functions. We will discuss these later.
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