Eyes Flashcards

(22 cards)

1
Q

Lateral rectus function and innervation

A

abduction (away from nose) Abducens CN VI

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2
Q

Medial rectus function and innervation

A

adduction (toward nose) Oculomotor CN III

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3
Q

Superior rectus function and innervation

A

elevation and adduction oculomotor CN III

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4
Q

Inferior rectus function and innervation

A

depression and adduction oculomotor CN III

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5
Q

Superior oblique function and innervation

A

depression and abduction trochlear IV

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6
Q

Inferior oblique function and innervation

A

elevation and abduction oculomotor CN III

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7
Q

What muscles are involved in abduction of the eye?

A

Superior oblique, inferior oblique, and lateral rectus

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8
Q

What muscles are involved in adduction of the eye?

A

medial rectus, superior rectus, inferior rectus

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9
Q

What muscles are involved in depression of the eye?

A

inferior rectus and superior oblique

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10
Q

What muscles are involved in elevation of the eye?

A

superior rectus and inferior oblique

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11
Q

How do you test lateral rectus?

A

look lateral

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12
Q

How do you test medial rectus?

A

look medial

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13
Q

How do you test superior rectus?

A

look lateral and up

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14
Q

How do you test inferior rectus?

A

look lateral and down

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15
Q

How do you test inferior oblique?

A

look medial and up

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16
Q

How do you test superior oblique?

A

look medial and down

17
Q

What happens to the eye with a CN III injury?

A

affected eye drifts down and out

18
Q

What happens to the eye with a CN IV injury?

A

affected eye drifts upward

19
Q

What happens to the eye with CN VI injury?

A

affected eye to drift medially

20
Q
A

CN III injury (onculomotor)

21
Q
A

Cranial nerve VI injury (abducens)

22
Q
A

CN IV injury (trochlear)