The Eye Flashcards

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1
Q

parts of the eye

A

sclera, cornea, pupil, lens, iris, ciliary body, chroid, retina, fovea, optic nerve

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2
Q

cornea

A

reflects light toward the pupil

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3
Q

aqueous humour

A

supplies cornea with nutrients and refracts light

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4
Q

iris

A

regualtes the amount of light entering the eye

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5
Q

pupil

A

the opening in the iris that allows light into the eye

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6
Q

lens

A

focus the image on the retina

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7
Q

ciliary muscles

A

open and closed the iris (uses tension)

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8
Q

vitreous humour

A

maintains the shape of the eyball and permits light transmission to the retnis
- liquid within the eye

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9
Q

retnia

A

contains photoreceptors

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10
Q

rods

A

used for veiwing dim light

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11
Q

cones

A

identify color

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12
Q

fovea centralis

A

most light sensitive area of the retnia; contains only cones

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13
Q

choroid layer

A

prevents light scattering

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14
Q

sclera

A

supports and protects delicate photo cells
- first layer
- connects the the socket and provides structure

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