Lectures 6 - 10 Flashcards
1
Q
What is the primary action of the SR?
A
Elevation
2
Q
What is the primary action of the IR?
A
Depression
3
Q
What is the primary action of the SO?
A
Intorsion
4
Q
What is the primary action of the IO?
A
Extorsion
5
Q
What is the primary action of the MR?
A
Adduction
6
Q
What is the primary action of the LR?
A
Abduction
7
Q
What pneumonic should you use to remember the actions of the EOMs?
A
ROOR
8
Q
What muscle is the SR yoked to?
A
IO
9
Q
What muscle is yoked to LR?
A
MR
10
Q
What is the Vestibulo-Ocular Reflex?
A
Stabilizes retinal image during head movement
Oculocephalic maneuver is elicited by moving patients head while asking patient to maintain fixation.
11
Q
What is Optokinetic Nystagmus?
A
Slow pursuit eye movement followed by a fast corrective saccade. Occurs when visual field moves over the retina.
