Page 5 - 8.3 PARTS OF HUMAN SKELETON
P. 5

the
                                                                                  the
                                                      pr
                                                                                  the
                            Ribca
                          • •Ribcage protects the
                                             ge
                                                             otects
                                                                                  the
                                                                                  the
                                        nal
                                        nal

                                                          gans
                                                          gans


                                                                          of
                                                   or

                                                                          of
                                                   or
                          internal organs of the
                          inter         nal        or     gans            of      the
                          inter
                          inter
                                                                         and
                          body like heart and lungs.
                                                                         and
                          body            lik    e     hear          t   and          lungs            .
                                          ribs

                          • •Two ribs are free as they

                                                                                  as

                                                              e
                                     o
                                                                        ee
                            T
                                                                                          they
                                                        ar
                                                                                  as
                                                                                  as

                                                                      r
                                w
                                                                                          they
                                                                                          they
                                                                    f
                                               y
                                                                                 to
                          are only attached to the
                                               y

                          ar
                                                                                 to

                                e
                                e
                          ar    e     onl      y    a   ttac        hed          to      the
                                                                    hed
                                                                                         the
                                                                                         the
                                                                    hed
                                                    a
                                                    a
                          ar
                                                        ttac
                                      onl
                                      onl
                                                        ttac
                                     kbone
                                                                                          the
                                                                                  to
                                     kbone
                                                                                          the
                                                                      not
                                                                      not
                          bac        kbone               and          not         to      the
                          bac
                                                         and
                                                         and
                                                                                  to
                          bac
                          backbone and not to the
                                                              and
                                                              and
                          breastbone and are
                          br
                          br    eas        tbone              and          ar    e
                                eas
                                eas
                          br
                                                                                 e
                                                                           ar
                                                                           ar
                                           tbone
                                           tbone
                                                                                 e
                                                                                   .
                                                                                   .
                          called              f loa       ting         ribs        .
                          called floating ribs.
                                                                                   tain
                                                                                   tain
                                                                                   tain
                                                                        cer
                                                                        cer
                                                                        cer
                                         ribs
                                         ribs
                                         ribs

                                                      allo


                            T
                            T
                          • •The ribs allow certain
                            T
                                he
                                he
                                he
                                                      allo
                                                                  w
                                                                  w
                                                      allo
                                                                  w
                                                             ement
                                         of
                                         of
                                                                                  of
                                                                                  of

                                                                                          the
                          kind of movement of the
                          kind           of      mo       v  ement                of      the
                                                                                          the

                          kind
                          kind
                                                 mo


                                                 mo
                                                          v
                                                          v
                                                             ement
                                                                               thing.
                                                                               thing.
                          chest during breathing.
                                                                  br
                          c c c
                                                                        ea
                                                                  br
                                                                        ea
                                                                               thing.
                                        t
                             hes
                             hes
                                        t
                                            during
                                            during
                                        t
                                                                  br
                                                                        ea
                             hes
                                            during
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