INTERACTION AND HELTH: SIGHT AND HEARING

SIGHT
1. Light enters our eye though the CORNEA and the PUPIL
2. The IRIS is a muscle that makes the pupil bigger or smaller
3. The LENS frouses the ligh. This allows images to be projected onto the retina at the back of the eye
4. NERVE RECEPTOR in the retina send this information along the OPTIC NERVE to our brain
HEARING
1. Our ear has tree parts
  1. outher ear
  2. middle ear
  3. inner ear
2. Sound waves make enter the ear the AUDITOR CANAL
3. Soun waes make the EARDRUM vivrate
  1. Contein 3 small bones
    1. MARTILLO
    2. Yunque
    3. Estribo
4. The cochlea transform sound vibration into electrical signals to our brain
5. The AUDITORY NERVE sends these signals to our brain
6. The SEMICIRCULAR CANALS in the inner ear help us keep our balance when we move

Resource summary

	Created by Victoria Ordóñez Martínez over 3 years ago