8 - Opth - Eye movements Flashcards
1
Q
Innervation of extra ocular muscles involved in eye movement
A
LR6SO4Rest3
CNIII - SR, MR, IR, I oblique
CNIV - S Oblique
CN VI - LR
2
Q
What other muscles are innervated by CNIII
A
levator palpebrae superioris, sphincter pupillae, ciliary muscle
3
Q
Which muscles adduct the eye
A
medial rectus (primary) superior rectus (tertiary) inferior rectus (tertiary)
4
Q
Which muscles ABduct the eye
A
lateral rectus (primary) Superior oblique and inferior oblique (tertiary)
5
Q
Which muscles elevate the eye
A
Superior rectus (primary) Inferior oblique (secondary)
6
Q
Which muscles depress the eye
A
Inferior rectus (primary) Superior oblique (secondary)
7
Q
Which muscles INtort the eye
A
Superior rectus (secondary) Superior oblique (primary)
8
Q
What muscles Extort the eye
A
Inferior rectus (secondary) Inferior oblique (primary)
9
Q
When are primary functions maximised?
A
during ABDuction
10
Q
When are secondary functions maximised?
A
ADDuction