TMJ, muscles Flashcards
1
Q
3 parts of the TMJ
A
- mandibular condyle
- articular fossa-non fx
articular eminence- fx - articular disk
2
Q
4 ligaments of the TMJ
A
- fibrous capsule
- lateral ligament
- stylomandibular
- sphenomandibula
3
Q
4 muscles of mastication
A
- masseter
- temporalis
- lateral pterygoid
- medial pterygoid
4
Q
The origin of the masseter muscle is the…. and the insertion is…
A
Origin: zygomatic arch
Insertion: Lateral angle on mandible
5
Q
The origin of the temporalis muscle is the… and the insertion is…
A
Origin: Temporal fossae
Insertion: temporal crest on mandible
6
Q
The origin of the medial pterygoid muscle is the… and the insertion is…
A
origin: pterygoid fossa
insertion: medial angle on mandible
7
Q
The origin of the lateral pterygoid muscle is the… and the insertion is…
A
Origin: lateral pterygoid plate and infra temporal of sphenoid
Insertion: neck of condyle and disc of mandible
