Temporal And Infratemporal Fossa Flashcards
What are the borders of the infratemporal fossa?
Lateral - ramus of mandible
Medial - lateral pterygoid plate
Superiorly - infratemporal crest
Inferiorly - angle of mandible
Anteriorly - posterior of maxilla
Posteriorly - tympanic plate, styloid process and mastoid process
What are the three parts of the maxillary artery?
What artery does the maxillary artery originate from?
Mandibular - 1st
Pterygoid - 2nd
Pyterygopalatine - 3rd
It branches off of the external carotid artery
What are notable branches of the mandibular part of maxillary artery?
Middle meningeal artery
Inferior alveolar artery
What are notable branches of the pterygoid artery?
Masseteric artery
Deep Temporal arteries
Pterygoid branches
Buccal artery
What are some notable branches of the pterygopalatine part?
Posterior superior alveolar artery
Infra-orbital artery
Descending palatine artery
What are the main branches of the mandibular nerve?
Auriculotemporal nerve
Inferior alveolar nerve
Lingual nerve
Describe the auriculotemporal nerve course, origin and supplies
Origin at the posterior division of the mandibular nerve and otic ganglion
Circles round the middle meningeal artery and ascends behind TMJ to anterior ear
Supplies sensory to auricle and temporal region and tmj
Describe origin, course and innervation of the inferior alveolar nerve
Originates from the posterior of mandibular nerve
Descends through mandibular foramen(forming inferior dental plexus), exits mental foramen and becomes mental nerve
Innervates lower teeth and mental nerve the lower lip, chin and incisive gingiva
Describe origin, course and innervation of lingual nerve
Origin at posterior of mandibular nerve
Descends between the mandible and the medial pterygoid and enters oral cavity
Supplies sensory to anterior 2/3rds of tongue, floor of mouth and lingual gingivae
