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PterygopalatineFossaIdentifications
(07 Dec 2015,
LorenEvey
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Pterygopalatine Fossa and Maxillary Nerve Identifications
Maxillary Division of the Trigeminal Nerve and the Pterygopalatine Fossa
Functional components - native GSA plus non-native "hitchhikers"
Foramen Rotundum - middle cranial fossa to pterygopalatine fossa
Transmits maxillary nerve
Pterygoid Canal - middle cranial fossa to pterygopalatine fossa
Transmits the nerve of the pterygoid canal (Vidian nerve)
Anterior lip of the lacerate foramen
Carotid groove
Sphenoid air sinus
Nerve of the pterygoid canal - functional components and parent nerves, distribution
Hiatus of the canal for the greater superficial petrosal nerve
Groove for the greater superficial petrosal nerve (VII)
Intracranial opening of the carotid canal at the lacerate foramen
Internal carotid plexus
Deep petrosal nerve
Apex of the petrous portion of the temporal bone
Pharyngeal Canal - pterygopalatine fossa to nasopharynx
Transmits pharyngeal nerve to nasopharynx, native and non-native functional components, distribution
Ala of the vomer
Vaginal process of medial pterygoid plate
Perpendicular plate of the palatine bone
Palatovaginal canal (pharyngeal canal)
Lesser palatine canal - pterygopalatine fossa to oral cavity
Transmits lesser palatine nerve to soft palate, native and non-native functional components, distribution
Medial pterygoid plate
Hamulus - tensor veli palatini
Perpendicular plate of the palatine bone
Greater palatine canal - pterygopalatine fossa to oral cavity
Transmits greater palatine nerve to hard palate, native and non-native functional components, distribution
Sphenopalatine foramen - why so named?
Sphenopalatine foramen - pterygopalatine fossa to nasal cavity
Transmits lateral posterior nasal nerves and nasopalatine nerve to nasal cavity, native and non-native functional components, distribution
Superior, middle, and inferior nasal chonchae (turbinates when covered with erectile tissue)
Superior, middle, and inferior nasal meatae and associated drainages
Perpendicular plate of the ethmoid bone
Vomer
Uncinate process, ethmoidal bulla, infundibulum, and hiatus semilunaris
Sphenoethmoidal recess - drainage of sphenoid sinus, posterior air cells
Inferior orbital fissure - pterygopalatine fossa to orbit
Greater wing of the sphenoid bone and the maxilla
Transmits maxillary nerve and zygomatic nerve to the orbit
Infraorbital nerve - native and non-native functional components, distribution
Zygomatic nerve - native and non-native functional components
Zygomaticofacial nerve - native and non-native functional components, distribution
Zygomaticotemporal nerve - native and non-native functional components, distribution
Canals for the zygomaticotemporal and zygomaticofacial nerves
Lacrimal nerve (from ophthalmic division of trigeminal) - native and non-native functional components, distribution
Infraorbital groove, infraorbital canal, and infraorbital foramen
Middle superior alveolar nerve, native and non-native functional components, distribution
Anterior superior alveolar nerve, native and non-native functional components, distribution
Pterygomaxillary fissure - pterygopalatine fossa to infratemporal fossa
Anterior border of the lateral pterygoid plate and posterior border of maxilla
Transmits posterior superior alveolar nerve, native and non-native functional components, distribution
Transmits terminal branches of maxillary artery
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Topic revision: r2 - 07 Dec 2015,
LorenEvey
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