Across
- 2. meeting point between retina and optic nerve
- 5. our _____ detects chemicals in the air.
- 6. sends these signals to our brain
- 8. coloured part and controls the amount of light entering the eye
- 9. light enters our eye
- 10. air enters our nose through our _____.
- 11. sound waves enter the ear
- 13. the _____________ _________ within the nasal cavity detect the odour particles
- 15. sounds make it vibrate
- 16. focused the light at the back of the eye on the retina
Down
- 1. ______ _______ send information along the olfactory nerve to our brain.
- 3. help us keep our balance when we move
- 4. the sound vibrations into electrical signals in the inner ear
- 7. nerve receptors send information along the _________ _____ to our brain.
- 12. send information along the optic nerve to our brain
- 14. light enters our eye
