Page 3 - 8.5 MUSCLES
P. 3

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                    T
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                   • •The movement of our body does not take place
                       h
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                   b e  c  a u  s e    o f   b o  n e  s   a l o n  e  .   M u  s c  l e s   a l s o    p l a y   a
                                                                         M
                   because of bones alone. Muscles also play a
                                                                                  c
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                                                                                s
                                           r
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                                        t

                             f
                            i
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                               i
                                                    .
                         n
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                       g
                                                l
                                c
                                   a
                                     n
                   s
                   significant role.
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                   • •Muscle is a fibrous tissue in the body which has


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                                                                      u



                                                                                                              c
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                                                                                                                 h
                   ability to contract.
                   a b  i l i t y   t o   c o n t r a c t .
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                                                                                                                W
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                   • •Some muscles are attached to the bones. When
                                                                                          h
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                                           c
                   these muscles contract and relax, they help the
                                                                        a
                   t h e  s e    mu    s c  l e s   c o  n  t r a c t   a n  d    r e l a x ,   t h e y   h  e l p   t h e

                                mu

                                                      o
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                                mu
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                                                                        a
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                                             v
                                                e
                           e
                                 t
                             s
                                                  .
                   bones to move.
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                                                                                                 w
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                                                                                                                                  f
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                                                           h

                                                                     t
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                                                                                                                                  f
                   • •Muscles are attached to the bones with the help of
                          s
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                                                                          t



                          s


                                 e
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                                                           h
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                                   s



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                    i
                                              d
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                                s

                                                                    .
                                                       n
                                      a
                                          l
                                                  t
                   tissues called tendons.
                           u
                                                          d
                             e
                                       w
                                       w

                                       w
                                                                                                                        h
                                                                                                                        h

                                                                                                       r
                                   s
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                                                                                                                  e
                                                                                                                  e
                                                                                                            o
                                                                                                                        h
                                                                                                               n
                                                                                                               n
                                   s
                                                                                                          b


                   • •Muscles which are not attached to our bones help in
                                           h

                                                                                                            o



                                                                                                            o
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                                   s
                                                                                                               n

                                                                                                       r
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                                           h

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                                                                               c
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                                                        r
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                                                        r
                                                        r
                          s


                                                                                                                                    n
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                                                                                                                                    n



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                                              i


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                                                  h
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                                                                                       d
                                                                                       d
                                                                                       d


                                                         s
                              u
                          i
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                                                         s
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                                                      e
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                          i
                                                                                a
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                           o
                                                             e
                                                                s
                                                                s
                                                             e
                           o
                                                                      u
                                                                      u
                                                                         c
                                                           s
                                                                    s
                                                                    s
                                                           s
                   various life processes such as digestion, respiration
                   v v v a r i o u s   l i f e   p r o c e s s e s   s u c  h   a s    d i g e s  t i o n ,   r e s p  i r a t i o n
                                       f
                                        e


                                        e
                                s
                                    l
                                    l
                                     i
                                       f
                                s
                                     i
                                            p
                        r
                        r
                                                 o
                                                   c
                                                   c
                                                                                  s


                     a
                                               r
                     a
                                                 o
                                               r
                                            p
                   a n  d    c i r c u l a t i o n .
                   and circulation.
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