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Flashcards in Eyes Deck (22)
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1

Lateral rectus function and innervation

abduction (away from nose) Abducens CN VI

2

Medial rectus function and innervation

adduction (toward nose) Oculomotor CN III

3

Superior rectus function and innervation

elevation and adduction oculomotor CN III

4

Inferior rectus function and innervation

depression and adduction oculomotor CN III

5

Superior oblique function and innervation

depression and abduction trochlear IV

6

Inferior oblique function and innervation

elevation and abduction oculomotor CN III

7

What muscles are involved in abduction of the eye?

Superior oblique, inferior oblique, and lateral rectus

8

What muscles are involved in adduction of the eye?

medial rectus, superior rectus, inferior rectus

9

What muscles are involved in depression of the eye?

inferior rectus and superior oblique

10

What muscles are involved in elevation of the eye?

superior rectus and inferior oblique

11

How do you test lateral rectus?

look lateral

12

How do you test medial rectus?

look medial

13

How do you test superior rectus?

look lateral and up

14

How do you test inferior rectus?

look lateral and down

15

How do you test inferior oblique?

look medial and up

16

How do you test superior oblique?

look medial and down

17

What happens to the eye with a CN III injury?

affected eye drifts down and out

18

What happens to the eye with a CN IV injury?

affected eye drifts upward

19

What happens to the eye with CN VI injury?

affected eye to drift medially

20

CN III injury (onculomotor)

21

Cranial nerve VI injury (abducens)

22

CN IV injury (trochlear)