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Optic Nerve (CN II)
Translates special sense of vision
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Optic chaism
where axons cross to give human binocular vision
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Optic tract
where sensory impulses from optic nerves are interpreted
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Superior rectus
Muscle of eyeball: elevation, adduction, and medial rotation
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Inferior rectus
Muscle of eyeball: depression, adduction, lateral rotation
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Medial rectus
adduction of eyeball
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Lateral rectus
abduction of eyeball
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Superior oblique
depression of eyeball
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Inferior oblique
elevation of eyeball
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palpebral conjuctiva
thin membrane in inside of eyelid
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ocular conjunctiva
thing membrane covering sclera
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Medial canthus
medial point where eyelids meet
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Lateral canthus
lateral point where eyelids meet
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lacrimal gland
secretes tears
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lacrimal gland ducts
ducts connecting gland to surface of eye
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lacrimal punctum
two small holes in medial canthus
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uperior/Inferior lacrimal canaliculus (canal)
thin superior duct draining lacrimal puntum to nasolacrimal duct
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Nasolacrimal duct
drains tears into inferior conchae in nasal cavity
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Sclera
whites of eye
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Choroid
- middle vascular layer
- -blood supply to eye
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Retina
- brown, neural, innermost layer
- -contains rods and cones
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Cornea
- clear, dome shaped covering of eye
- protects pupil
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Anterior cavity
space btw cornea and lens
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Aqueous humor
fluid secreted by posterior chamber that fills anterior cavity
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