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14 Cards in this Set
- Front
- Back
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Boney structure of the Orbit |
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Lacrimal Gland |
In the superolateral Orbit. Just behind the orbital Margin. Tears are produced hear and stream across the surface of the eye. |
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Lacrimal Papilla |
At the medial Junction of the upper and lower eyelids, tears train into the papilla and are carried through the Lacrimal canaliculi to the lacrimal sac. |
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Levator Palpebrae |
Origin- Common tendinous Ring Insertion- Broad app. into upper eyelid. Innervation- Superior Division of CNIII Function- Voluntary elevator of the upper eyelid. |
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Superior Tarsal Muscle |
Arises from Levator Palpebrae Superioris. Innervation- Symps. from ICA Function- Involuntary of Upper eyelid. |
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What are the three axes the eyeball moves around? |
Sagittal- Elevation and Depression Transverse- Abduction and Adduction Anteroposterior- Intorsion and Extorsion |
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Lateral Rectus |
Innvervation- CN VI, Abducent. Primary abductor |
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Medial Rectus |
Inferior division of CNIII, Primary adductor. |
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Superior Rectus |
Superior division of CNIII, Elevator, Adductor, and Intorsion. |
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Inferior Rectus |
Inferior Division of CNIII, depressor, adductor, extorsion. |
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Superior Oblique |
Cn IV ( trochlear). Runs of a pulley. depressor, abductor and intorsion. |
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Inferior Oblique |
Inferior division of CN III. Elevator, abductor, Extorsion |
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Horners Syndrome |
Interruption of Sympathetics to the eye results in ptosis( drop of eyelid), miosis(Pupil constriction), an hydrosis ( Loss of sweating), and flushing of the face. |
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Test of Extra Ocular Muscles |
Trace the H. In right eye. Abduct. Look up to test Superior Rectus. Look down to test inferior Rectus. Adduct. Look up to test inferior oblique and look down to test inferior oblique. |
