Flashcards in Temporal Infratemporal Fossae Deck (138)
What are the 4 boundaries of the temporal fossa?
-Posterior and superior
Posterior and superior boundaries of the temporal fossa boundaries
Anterior boundary of the temporal fossa
Frontal and zygomatic bones
Lateral boundaries of the temporal fossa
Inferior boundaries of the temporal fossa
Infratemporal crest of the sphenoid (best seen when the zygomatic arch has been removed)
The contents of the temporal fossa
-temporalis muscle and fascia
-deep temporal vessels and nerves
-superficial temporal vessels
Infratemporal fossa anterior border
Posterior aspect of maxilla
Medial boundary of the infratemporal fossa
Lateral pterygoid plate
Lateral boundary of the infratemporal fossa
Ramus of the mandible
Superior boundary of the infratemporal fossa
Inferior surface of the greater wing of the sphenoid
Posterior boundary of the infratemporal fossa
The tympanic plate and the mastoid and styloid processes of the temporal bone
Inferior boundary of the infratemporal fossa
Site of attachment of the medial pterygoid to the mandible near its angle
What type of joint is the Temporomandibular joint
A synovial joint; modified hinge joint
Articulate surfaces of the temporomandibular joint
-mandibular fossa and articulate tubercle of the temporal bone
What is an articulate disc composed of?
What divides the temporomandibular joint into two compartments
What are the two compartments of the temporomandibular joint?
Superior compartment of the temporomandibular joint
Responsible for gliding movements of the protrusion and recursion
Inferior compartment of the temporomandibular joint
Responsible for hinge movements of depression and elevation
What is the articular disc peripherally attached to?
The joint capsule
What does the articular disc attach to anteriomedially?
Tendon of the lateral pterygoid *******
Joint or articular capsule of the temporomandibular joint attaches superiorly to what?
Articular tubercle and the margins of the mandibular fossa
Joint or articular capsule of the temporomandibular joint attaches inferiorly to what?
The neck of the mandible
Synovial membrane of the temporomandibular joint
Lines the joint capsule above and below the articular disc, but does not cover the articular disc
Temporomandibular joint ligaments
-temporomandibular ligament (lateral ligament)
Where does the phenomandibular ligament come from?
What are the muscles of mastication?
What are the muscles of mastication innervated by?
Branches of V3
Origin of the temporalis
Inferior temporal line, temporal fossa, temporalis fascia