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Structure & Functions of Parts of the Eye
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The White of the Eyes
The White of the Eyes
Sclera
Colored portion of the eye
Colored portion of the eye
Iris
Iris may be hazel, brown, or this color
Iris may be hazel, brown, or this color
blue
Membrane that protects & maintains eyeball's shape
Membrane that protects & maintains eyeball's shape
Sclera
Thin mucous membrane lines anterior of eye, exposed to air
Thin mucous membrane lines anterior of eye, exposed to air
Conjunctiva
Located in the center of the iris
Located in the center of the iris
pupil
Produces tears
Produces tears
Lacrimal Gland
Protects the eyeballs from foreign matter and insects
Protects the eyeballs from foreign matter and insects
eyelashes
Tears drain from the eyes through this
Tears drain from the eyes through this
Lacrimal Duct
Controls amount of light entering the eye
Controls amount of light entering the eye
pupil
Nerve impulses transmitted via this to the brain
Nerve impulses transmitted via this to the brain
Otic Nerve
Responsible for dim lights & peripheral vision
Responsible for dim lights & peripheral vision
Rods
Nerve cells along the optic nerve (Two words)
Nerve cells along the optic nerve (Two words)
Rods & Cones
Examination of external & internal structures of the eye
Examination of external & internal structures of the eye
Ophthalmoscopy
Transparent, nonvascular layer covering the iris
Transparent, nonvascular layer covering the iris
Cornea
Located in bony orbits within the facial bones
Located in bony orbits within the facial bones
The Eyes
The pupil's diameter is regulated by contracting & relaxing of this
The pupil's diameter is regulated by contracting & relaxing of this
The Iris
Tears flow across conjunctival surfaces to cleanse and to this
Tears flow across conjunctival surfaces to cleanse and to this
lubricate
Instrument used to perform examination of eye structures
Instrument used to perform examination of eye structures
Ophthalmoscope
Anterior & Posterior cavities separated by this
Anterior & Posterior cavities separated by this
Lens
Colorless biconvex structure aids in focusing images
Colorless biconvex structure aids in focusing images
Lens
Part of retina insensitive to light
Part of retina insensitive to light
Optic Disc
When images focus on fovea centralis resulting in sharpest images.. called what?
When images focus on fovea centralis resulting in sharpest images.. called what?
central vision
Contains the highest concentration of cones
Contains the highest concentration of cones
fovea centralis
Contains extensive capillaries that provide blood supply & nutrients
Contains extensive capillaries that provide blood supply & nutrients
Choroid
Responsible for visualizing colors, central vision
Responsible for visualizing colors, central vision
Cones
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What Would You Like To Risk?
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Go To The Final Question
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