TMJ + Face Flashcards
What side of an infants skull will likely be deformed with right-side torticollis
Left side
How many bones are in the skull?
22
What cranium bone is not connected by a suture?
Mandible
What’s it called when the cranial bones fuse too early?
Cranial stenosis
What is the region called where the frontal, sphenoid, parietal and the temporal bone fuse?
Pterion
What are these 2 structures called?
- Coronal Suture
- Sagittal suture
What nerve innervates the muscles of the face?
Facial Nerve (Cranial Nerve 7)
What muscle pulls the nose inferiorly
Depressor Septi
What muscle shuts the eyes?
Orbicularis oculi
What muscle lifts the eyebrows and forehead?
occipitofrontalis
What muscle causes you to frown?
Depressor anguli oris
What muscle raises and protrudes the lower lip?
Mentalis
What kind of cartilage lines the mandibular condyle?
Fibrocartilage
What is this part of the mandible called?
Ramus
The lower part of the mandibular disc allows for what?
Depression and elevation
The upper part of the mandibular disc allows for what?
Protrusion and retraction
What muscle attaches to the mandibular disc?
Superior head of the Lateral Pterygoid
What nerve innervates the masseter
Masseteric Nerve coming from Anterior trunk of Mandibular Nerve
What nerve innervates the Temporalis?
The deep temporal nerve coming from anterior trunk of mandible nerve
Note: The parent structure of the mandibular nerve is the trigeminal nerve
What is the muscle action of the masseter?
Elevates mandible
What is the muscle action of the temporalis?
Elevates and retracts mandible
Name muscle 1 and 2
1: Temporalis
2: Masseter
Note: Both are muscles of mastication
What 3 nerves come from the trigenimal nerve?
Mandibular Nerve (Only motor nerve)
Opthalmic (sensory)
Maxillary (sensor)
What is this muscle and what is it’s innervation?
Medial Pterygoid
Nerve: Nerve to medial pterygoid from Mandibular Nerve
