1. Sensory Information Vision & Hearing Biology 12 S. Dosman

2. Sclera O Outer covering of the eye that supports and protects the eye’s inner layers; usually referred to as the white of the eye.

3. Cornea O Transparent part of the sclera that protects the eye and refracts light toward the pupil of the eye.

4. Aqueous humour O Watery liquid that protects the lens of the eye and supplies the cornea with nutrients.

5. Choroid layer O Middle layer of tissue in the eye that contains blood vessels and dark pigments that absorb light to stop reflection.

6. Iris O Opaque disk of tissue surrounding the pupil that regulates amount of light entering the eye.

7. Retina O Innermost layer of tissue at the back of the eye containing photoreceptors

8. Rods O Photoreceptors that operate in dim light to detect light in black and white

9. Cones O Photoreceptors that operate in bright light to identify colour

10. Fovea Centralis O Area at the centre of the retina where cones are most dense and vision is sharpest.

11. Glaucoma O Disorder of the eye caused by build up of fluid in the chamber anterior to the lens.

13. Cataract O Condition that occurs when the lens or cornea becomes opaque, preventing light from passing through.

15. Astigmatism O Vision defect caused by abnormal curvature of the surface of the lens or cornea

16. Nearsightedness O A condition that occurs when the image is focused in front of the retina

18. Farsightedness O A condition that results when the image is focused behind the retina

20. Anatomy Review O http://www.youtube.com/watch?v=RE1MvR mWg7I http://www.youtube.com/watch?v=RE1MvR mWg7I

21. Pinna O Outer part of the ear that acts like a funnel, taking sound from a large area and channelling it into a small canal.

22. Auditory canal O Carries sound waves to the eardrum

23. Tympanic membrane O Thin layer of tissue, also known as the eardrum

24. Ossicles O Tiny bones that amplify and carry sound in the middle ear. O They include the malleus, incus, and stapes.

25. Oval window O Oval-shaped hole in the vestibule of the inner ear, covered by a thin layer of tissue

26. Eustachian Tube O Air-filled tube of the middle ear that equalizes pressure between the external and internal ear.

27. Vestibule O Chamber found at the base of the semicircular canals that provides information about static equilibrium.

28. Semicircular canals O Fluid-filled structures within the inner ear that provide information about dynamic equilibirum.

29. Cochlea O Coiled structure of the inner ear that responds to various sound waves and converts them into nerve impulses.

30. Organ of Corti O Primary sound receptor in the cochlea

31. Basilar membrane O Anchors the receptor hair cells in the organ of Corti

32. How the Ear Works O http://www.youtube.com/watch?v=PeTriGTE Noc http://www.youtube.com/watch?v=PeTriGTE Noc