Infratemporal fossa Flashcards
what is the infratemporal fossa
space beneath the base of the skull - between the skull and the ramus of the mandible
what foramen opens into the infratemporal fossa
foramen ovale
the foramen ovale opens into the infratemporal fossa which allows what
mandibular branch of the trigeminal nerve to exit skull
what artery passes from the infratemporal fossa into the foramen spinosum to gain entry to the skull
middle meningeal
what is the anterior boundary of the infratemporal fossa
posterior surface of maxilla
what is the posterior boundary of the infratemporal fossa
styloid process
what is the superior boundary of the infratemporal fossa
infratemporal surface of the greater wing of the sphenoid
what is the medial border of the infratemporal fossa
lateral pterygoid plate
what is the lateral border of the infratemporal fossa
ramus of the mandible
terminal branches of the maxillary artery pass through ___ to exit the infratemporal fossa
the pterygomaxillary fissure
what are the contents of the infratemporal fossa
lateral and medial pterygoid mandibular division of the trigeminal nerve CNV3 maxillary artery and branches pterygoid venous plexus chorda tympani otic ganglion
what nervous structures pass are found in the infratemporal fossa
otic ganglion
chorda tympani
mandibular division of the trigeminal nerve
what is the function of the medial pterygoid
assists in elevating the mandible
what is the function of the lateral pterygoid
pulls the neck of the mandible forward
together what do the pterygoids do
chewing movements
nerve supply of the pterygoids
mandibular division of trigeminal
what are the branches of the anterior division of the mandibular division of the trigeminal nerve
2x deep temporal
masseteric
nerve to lateral pterygoid
buccal (sensory)
what are the branches of the posterior division of the mandibular division of the trigeminal nerve
lingual (joined by chorda tympani)
inferior alveolar
mylohyoid
auricolutemporal
what branches does the the mandibular division of the trigeminal nerve give off before it divides into anterior and posterior branches
meningeal
nerve to medial pterygoid
communicating branch (tensor tympani and tensor veli palatini)
describe the course of the inferior alveolar branch of the posterior division of the mandibular division of the trigeminal nerve
supplies the lower teeth and then passes out onto face to supply cutaneous innervation to skin over mandible