SOUND WAVES ENTER OUR EAR THROUGH IT
LIGHT ENTERS OUR EYE THROUGH THEM.
IT FOCUSES THE LIGHT WHICH ALLOWS IMAGES TO BE PROJECTED
WHERE THE VIBRATIONS ARE REACHED AND TRANSFORMED INTO ELECTRICAL SIGNALS
NERVE RECEPTORS IN THE RETINA SEND INFORMATION ALONG IT TO THE BRAIN
IT IS A MUSCLE THAT MAKES THE PUPIL BIGGER OR SMALLER
THEY KEEP OUR BALANCE AND EQUILIBRIUM.
WHEN EARDRUM VIBRATES THEY ALSO VIBRATE IN OUR MIDDLE EAR
