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Chapter 8 - Special Senses
Across
1. Snail-shaped chamber of the bony labyrinth that houses the receptor for hearing (the organ of Corti).
3. Earwax.
4. The process of increasing the refractive power of the lens of the eye; focusing.
6. Taste.
9. One of the small calcified masses in the utricle and saccule of the inner ear.
11. Sensory receptor organs that house gustatory cells, which respond to dissolved food chemicals.
13. The three tiny bones serving as transmitters of vibrations and located within the middle ear: the malleus, incus, and stapes.
14. Transparent anterior portion of the eyeball; part of the fibrous tunic.
17. Tube that connects the middle ear and the pharynx.
18. Eardrum.
19. One of the two types of photosensitive cells in the retina. Function in dim light conditions.
Down
2. A condition in which unequal curvatures in different parts of the lens (or cornea) of the eye lead to blurred vision.
3. The vascular middle tunic of the eye.
5. Thin, protective mucous membrand lining the eyelids and covering the anterior surface of the eye itself.
7. One of the two types of photoreceptor cells in the retina of the eye; provide for color vision.
8. Watery fluid in the anterior chambers of the eye.
10. A condition in which visual images are routinely focused behind the retina; commonly known as farsightedness.
12. White opaque portion of the fibrous tunic of the eyeball.
15. Neural tunic of the eyeball; contains photoreceptors (rods, cones).
16. A condition in which visual images are focused in front of rather than on the retina; nearsightedness.
17. Opening in the center of the iris through which light enters the eye.