Face and TMJ Flashcards
1
Q
What makes up the TMJ
A
condyle of the mandible with the
mandibular fossa and
articular tubercle (zygomatic bone)
- articular disc
2
Q
TMJ movement
A
- protraction
- retraction
- elevation
- depression
3
Q
Muscles of mastication
A
*all innervated by CN V (trigeminal)
- masseter
- temporalis
- medial pterygoid
- lateral pterygoid
4
Q
Extraocular muscles
A
- Levator palperde superioris
- rectus muscles (superior, lateral, medial, and inferior)
- oblique muscles (superior and inferior)
5
Q
Facial muscles
A
- orbicularis oculi
- oral group: zygomaticus major/minor, orbicularis oris, buccinator
- other muscles: platysm, auricular muscles, occipitofrontalis
6
Q
cutaneous innervations of the trigeminal nerve
A
- V1 = opthalmic – around the eyes
- V2 = maxillary – upper lip/midd part of face
- V3 = mandibular – chin and lower lip
7
Q
Action of eye muscles
A
- superior rectus: elevates
- medial rectus: adducts
- inferior rectus: depresses
- superior oblique: depresses and abducts
- lateral recuts: abducts:
- inferior oblique: elevates and abducts
