Hearing and Sight

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Across
  1. 2. the hearing center is a part of the _
  2. 3. the ear _ leads to the ear drum
  3. 7. transparent outer layer of the eyeball
  4. 9. turns sound waves into signals for the brain
  5. 12. how the image appears on the retina
  6. 15. sound is _
  7. 16. the eye part that is projector like
  8. 18. tiny bone that send sound to anvil
  9. 19. the part of the eye that controls the amount of light that enters the eye
Down
  1. 1. the lining on the back of the eyeball
  2. 4. sends information from the eye to the brain
  3. 5. control the pupil size
  4. 6. the inner ear controls _
  5. 8. tiny bone that send sound to stirrup
  6. 10. the outer ear _ sound into the ear
  7. 11. the color part of the eye
  8. 13. what is collected by the eye for us to see
  9. 14. ear _ membrane that vibrates when sound hits it
  10. 17. tiny bone that sends sound to inner ear