Head Flashcards
Tobias ch 122-124
1
Q
What muscles elevate the upper eyelid?
A
Levator anguli oculi medialis
Levator palpebrae superioris
Frontalis muscle
2
Q
What muscle lowers the lower eyelid?
A
Malaris muscle
3
Q
What muscle brings upper and lower eyelids together?
A
Orbicularis oculi muscle (sphincter like)
4
Q
Innervation of the eyelid
A
Branches of facial nerve
(EXCEPT levator palpebrae superioris = oculomotor nerve, Muller’s = sympathetic)
5
Q
What nerve supplies sensation to the eyelids?
A
Trigeminal
6
Q
Function and innervation of the levator palpebrae superioris?
A
Raises upper eyelid
Oculomotor nerve (CN3)
7
Q
What structures prevent the palpebral fissure from becoming circular?
A
medial and lateral canthal ligaments
