Infratemporal Fossa/Pterygopalatine Fossa Flashcards
IT fossa lateral
Ramus of middle and zygomatic arch
IT fossa medial
Lateral pterygoid plate
IT fossa anterior
Posterior part of maxilla
IT fossa posterior
TMJ joint
IT fossa superior
Great wing of sphenoid
Contents of IT fossa
Pterygoids Maxillary artery Pterygoid plexus of veins Mandibular division of of trigeminal Otic ganglion
Temporalis action
Elevate
Masseter action
Elevate mandible
Medial pterygoid action
Elevate mandible
Lateral pterygoid action
Protract and depress chin
TMJ joint
Articulates at condylar process of mandible
Contains articular disc to create 2 cavitiies
Movements of TMJ
Anterior glidiing between articular disc and mandibular fossa at superior
Rotation between mandibular codyle and articular disc at inferior cavity
Anterior branches of external carotid
Superior thyroid
Lingual
Facial
Medial branches of external carotid
Ascending pharyngeal
Posterior branches of external cartoid
Occipital and posterior auricular
Terminal branches of external carotid
Maxillary and superficial temporal artery
3 portions of maxillary artery
Deep to ramus of mandible
Anterior to ramus
Enterance of pterygopalatine fossa and continue into fossa
Middle mengingeal artery runs where and supplies
Between auriculotemporal to enter foramen spinosum to supply meninges
Inferior alveolar artery runs and supplies
Through mandibular foramen to supply the teeth of the mandible
Posterior superior alveolar artery runs and supplies
Enters pterygomaxillary fissue
POsterior teeth