Page 2 - CH-8-8.1 HUMAN BODY
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  INTRODUCTION


                 Our  body  is  capable  of  performing  a  wide  variety  of  simple  and  complex
                   functions.
                 Human  body  has  different  organs,  each  of  which  performs  different
                   functions.

                 Organs do not work alone. Many organs work together and help in the
                   proper functioning of the body.

















































                 A group of organs that work together and perform one or more functions in

                   the body is known as an organ system.
                 For example: Digestive system of our body includes some organs such as

                   mouth, oesophagus, stomach, liver and intestine that help in the process of
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