Term
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Definition
| Refracts light, important in focusing light onto the retina |
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Term
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Definition
| Maintains shape of eye and protects eye: also serves as site of extrinsic muscle attachment |
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Term
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Definition
| Controls amount of light passing through the pupil |
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Term
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Definition
| changes shape of lens (accommodation) and secretes aqueous humor |
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Term
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Definition
| Absorbs light: contains blood vessels for eye structures |
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Term
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Definition
| Absorbs light: detects light and forms image for transmission to brain |
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Term
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Definition
| Refracts light: important in accommodation |
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Term
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Definition
| Maintains shape of eye and refracts light through its aqueous humor |
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Term
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Definition
| Maintains shape of eye and refracts light through its vitreous humor |
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Term
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Definition
| Fills anterior cavity, helping to maintain shape of eye: refracts light, maintains intraocular pressure |
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Term
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Definition
| Fills posterior cavity and maintains intraocular pressure: lends shape to eye and keeps retina firmly pressed against choroid: refracts light. |
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Term
| What do eyebrows and eyelashes offer? |
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Definition
| protection against the entry of foreign particles to the pupil |
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Term
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Definition
| Protect the anterior portion of the eye |
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Term
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Definition
| contains the lacrimal glands that produce tears to bathe the eyeball and keep it moist |
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Term
| Where are Cones most concentrated? |
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Definition
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Term
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Definition
| A visual pigment that is used by both rods and cones to detect movement in the environment |
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Term
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Definition
| Where the optic nerve exits |
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Term
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Definition
| The portion of the retina where the optic disk is |
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Term
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Definition
| (Lens, cornea, aqueous humor, vitreous humor) Media that focus light rays and cause them to cnverge on the fovea centralis of the retina |
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Term
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Definition
| The area served by an eye |
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Term
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Definition
| Condition in which the two eyes do not work together in a coordinated fashion, and the individual sees two images instead of one |
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Term
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Definition
| The image forms in front of the retina, glasses with concave lenses are used to focus the image on the retina |
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Term
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Definition
| The image forms behind the retina and is blurred. Glasses with convex lenses are used to focus the image on the retina |
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Term
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Definition
| Light rays separate, and fall on different areas of the retina. An uneven lens corrects this |
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Term
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Definition
| The inability of cones to react to certain colors of the spectrum. |
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Term
| What are the three major portions of the ear? |
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Definition
| External ear, the middle ear, and the internal ear |
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Term
| What is the external ear called? |
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Definition
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Term
| What lies within the pinna? |
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Definition
| The external auditory canal, through which sound vibrations pass |
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Term
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Definition
| The entry to the external auditory canal |
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Term
| Tympanic membrane, or eardrum |
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Definition
| Membranous structure at the proximal end of the external auditory canal |
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Term
| What is the long, slender tube that leads from the Pharynx to the middle ear? |
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Definition
| The Auditory (Eustachian) tube |
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Term
| What is the snail-like structure contained within the internal ear? |
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Definition
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Term
| What is the fluid within the cochlea? |
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Definition
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