Temporomandibular Joint (1 Question) Flashcards
What are the extracapsular ligaments of the temporomandibular joint?
temporomandibular/lateral ligament
stylomandibular ligament
sphenomandibular ligament
What does the lateral/temporomandibular ligament represent?
a thickening of the fibrous capsule of the temporomandibular joint
What are the attachment sites of the stylomandibular ligament?
styloid process of the temporal bone to the angle of the mandible
What does the stylomandibular ligament represent?
a thickening of the deep cervical fascia
What are the attachment sites of the sphenomandibular ligament?
spine of the sphenoid bone to the lingula of the mandible
What muscles act to depress the mandible or open the mouth?
lateral pterygoid along with the suprahyoid and infrahyoid muscles
What muscles act to elevate the mandible or close the mouth?
temporalis, masseter, medial pterygoid
What muscles act to protract the mandible or protrude the chin?
masseter, medial pterygoid, lateral pterygoid
What muscles act to retract the mandible or pull the chin back?
temporalis