CN V2 Flashcards
CN V2
Function
O
AN
Path
- GSA
- Sensation of midface, lower eyelid
- Mucous mebrane of nose and maxillary sinus
- Upper lip
- Maxillary teeth and palate
- Trigeminal Semilunar Ganglion
- AN Trigeminal Sensory nucleus
- Path: Foramen rotundum
V2 Major divisions
- Posterior superior Alveolar
- Infraorbital
- Zygomatic
- Ganglionic branches
- Pharyngeal
- Nasopalatine
- Greater/Anterior palatine
- Lesses/Posterior palatine
SUbdivisions in V2
- Infraorbital
- Middle superior alveolar
- Anterior superios alveolar
- Nasal
- Palpebrael
- Superior labial
- Zygomatic
- Communication to lacrimal
- Zygomaticofacial
- Zygomaticotemporal
Posterior Superior Alveolar
- Passes through Posterior Superior Alveolar Foramen
- Maxillary sinus
- Buccal gingiva along max molars
- Maxillary Molars (1,2,3,14,15,16)
Infraorbital
- Skin inferior to orbit
- Medial upper lip
- Buccal gingiva of max central incisor, lateral incisor, canice, premolars
Middle Superior Alveolar
- Maxillary sinus
- Maxillary premolars
Anterior Superior Alveolar n
- Maxillary Sinus
- Max central incisor
- Max lateral incisor
- Mar canine
Nasal n.
Path and function
- Infraorbital foramen
- Nasal cavity
- Nasal septum
Palpebrael n.
Path and finction
- Inferiororbital foramen
- Skin of lower eyelid
Superior labial n
Path and function
- Infraorbital foramen
- Skin of upper lip
Zygomatic subdivisions
- Communication to lacrimal n.
- Zygomaticofacial
- Zygomaticotemporal
Communication to lacrimal
Path and function
- Pterygopalatine fossa
- CN VII hitch hikes, carries parasympathetic from pterygopalatine ganglion to lacrimalof V1
Zygomaticofacial n
Path and function
- zygomaticofacial foramen
- skin inferior and lateral to orbit
- Lateral upperr lip
Zygomaticotemporal
Path and function
- Zygomaticotemporal foramen
- Skin superior and lateral to orbit
Ganglionic branches
Communication bte pterygopalatine ganglion and V2
VII hitchhikers
Carries parasympathetic from pterygopalatine ganglion to V2
Pharyngeal n.
Path and function
Pharyngeal canal
Nasopharynx
Nasopalatine n
Path and function
- Spenopalatine foramen and Incisive canal
- Hard palate
- Palatal gingiva
- Mucosa between canines
Greater/Anterior Palatine n
Path and function
- Palatine canal–> Greater anterior palatine canal
- Hard palate
- Palatal gingiva/mucosa between premolars/molars
Lesser/Posterior palatine n.
Path and function
- Paatine canal–> Lesser/Posterior canal
- Soft palate
Which nerves innervate the maxillary sinus?
MSA
PSA
ASA
Which nerves innervate the hard palate
Nasopalatine
Greater/Lesser Palatine
