Across
- 5. contains millions of light receptors
- 6. carries impulses from rods and cones to the brain
- 7. the part of the retina where most images are focused
- 9. carries vibrations to the middle ear
- 11. apparatus in the ear that is responsible for balance
- 12. the opening in the eye that lets light in
- 13. this tube opens or "pops" when we yawn or swallow
- 15. a type of receptor in the eye that detects colour
- 16. converts sound waves into nerve signals
- 18. the eye is moved by the use of __________ external muscles
Down
- 1. the humour that supports the eye by exerting outward pressure on the eyeball
- 2. collects and channels sound waves into the external auditory canal and to eardrum
- 3. membrane around the eye, used for protection
- 4. a tough white coat that holds the eye in place
- 8. the hammer, anvil and stirrup are collectively known as _________
- 10. a common corrective measure for Glue Ear
- 14. contains blood vessels that nourish the eye
- 17. changes shape to focus the light