jueves, 14 de enero de 2016

THE 5 SENSES

                                                        HEARING
               Sound waves enter through the auditory canal and make the eardrum  vibrate ( outer ear).
               These vibrations make the three small bones in the middle ear vibrate. When these                                 vibrations reach the cochlea, they are trans formed into electrical signals ( inner ear ). The                  auditory nerve sends signals to oue brain. The semicercular canals keep our balance and                     equilibrium. ( inner ear).

Parts of an ear:
http://www.agbell.org/Document.aspx?id=138

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