1. Chapter 13 Presentation By: Jessica Olsofka

3. Small tube surgically places in a child's eardrum to assist in drainage of trapped fluid and to equalize pressure between the middle ear cavity and the atmosphere.

6. The conduction of sound to the inner ear through the bones of the skull.

9. Inflammation of the middle ear, or middle ear infection.

11. State of normal vision.

13. Outward turning of the eye.

14. Also called wall-eyed.

17. Eye movements.

19. Clearness of vision.