Sphenoid/Face Flashcards
8?

Infra-orbital region

What muscle is part of dilators of mouth; elevate labial commisure bilaterally to smile or unilaterally to sneer
Zygomaticus minor
What muscle draws the eyebrow medially and inferiorly, creating vertical wrinkles above nose (demonstrating concern or worry)?
Corrugator supercilii
4?

Temporal region

5?

Auricular region

Which Le Fort classification is this?

Le Fort 1

6?

Mastoid region

What muscles are part of dilators of mouth that depress labial commissure bilaterally to frown
Risorius and Depressor anguli oris
1?

Frontal Region

What muscles are part of dilators of mouth that retract and/or evert the upper lip; deepen nasolabial sulcus?
Levator labii superioris and Zygomaticus minor
What muscle depresses mandible; tenses skin of inferior face and neck
Platysma
7?

Orbital region

12?

Nasal region

What muscle is part of dilators of mouth; widens oral fissure as when grinning or grimacing?
Levator anguli oris
2?

Parieal region

10?

Parotid region

What muscle is part of the dilators of the mouth that retracts and/or evert lower lip?
Depressor labii inferioris
Which CN innervates masseter muscle?
CN V3
11?

Zygomatic region

What muscle presses cheek against molar teeth; works tongue to keep food between occlusal surfaces and out of oral vestibule; resists distension
Buccinator
Which Le Fort classification is this?

Le Fort 3

13?

Oral region

14?

Mental region

Which Le Fort classification is this?

Le Fort 2

What muscle tonus closes oral fissure; phasic contraction compresses and protrudes lips or resists detension
Orbicularis oris
What muscle elevates and protrudes lower lip; elevates skin of chin
Mentalis
3?

Occipital region

9?

Buccal region
