Facial lesions Flashcards
1
Q
What does UMN lesion to the facial nerve cause?
A
Contralateral paralysis of lower face.
2
Q
Why is the upper half of the face spared with UMN lesions?
A
Bilateral UMN innervation to upper half of face at facial nucleus.
3
Q
What does LMN lesion to facial nerve cause?
A
Ipsilateral paralysis to upper and lower face.
4
Q
What is Ramsay hunt syndrome?
A
Herpes zoster + facial nerve palsy.
5
Q
What are the muscles of mastication?
A
Close: Masseter, teMporalis, Medial pterygoid. (Ms Munch)
Open: Lateral pterygoid. (lateral lowers).
6
Q
What is the innervation of the mastication msucles?
A
V3
