Maxillary Division Flashcards
What does V2 Maxillary Nerve supply?
Supplies maxillary facial & lingual gingiva, Max teeth, palatal mucosa, nasopharynx, hard/soft palate
What is the branch given off @ middle cranial fossa of V2 Maxillary
Middle Meningeal Nerve
What does the Branch Middle Meningeal Nerve supply?
Supply sensory to dura (tough fibrous membrane) to cover brain/spinal cord
Then what does V2, Maxillary course through?
Courses through foramen rotundum-to- Pterygopalatine Fossa (Pterygopalatine Ganglion-bulge/bump)
What are the 4 branches of V2, given off at the Pterygopalatine Fossa?
Zygomatic, Pterygopalatine, Posterior Superior Alveolar, Infraorbital
What are the 2 sub-branches off Zygomatic
Zygomaticofacial & Zygomaticotemporal
The Zygomatic courses through…
Leaves Pterygopalatine fossa-through- infraorbital fissure-into- the orbit
What does sub-branch Zygomaticofacial Supply?
Supplies sensory to skin over the zygomatic bone
What does sub-branch Zygomaticotemporal Supply?
Supplies sensory to anterior portion of temporal fossa
Where does the Pterygopalatine Nerves stay?
Unite/stay @ Pterygopalatine Ganglion
What are the 4 sub-branches off Pterygopalatine Nerves
Orbital, Nasal, Palatine, and Pharyngeal
What does the Orbital branch course/supply?
Course Pterygopalatine Fossa-through-infraorbital fissure-into- Orbit. Supply Periosteum of Orbit/Sphenoid Sinus
What does the Nasal branch course/travel through?
Pterygopalatine Fossa-to- Sphenopalatine Foramen-to- Nasal Cavity (nasal septum)-to- incisive canal, where the two nerves UNITE to form 1 nerve-through- incisive foramen
What is the 1 sub/sub-division of the Nasal Branch
The Nasopalatine Nerve
Where is the location of the sphenopalatine foramen?
it’s on the medial wall of the Pterygopalatine Fossa
What 2 structures does the Nasopalatine Nerve supply?
Lingual Gingiva of Max Anterior Teeth & Palatal Mucosa in Pre-Maxilla area (anterior to canines)
Where does the Greater Palatine Nerve branch course/travel through?
Pterygopalatine Fossa-to- Pterygopalatine Canal-to- Greater Palatine Canal-to- Greater Palatine Foramen (distal to Max 2nd molar)-to- Palatine Groove (where the vertical meets horizontal), upto the pre-maxilla
What are the 2 sub/sub-divisions of the Palatine Branch?
Greater Palatine Nerve & Lesser Palatine Nerve
What 2 structures does the Greater Palatine Nerve supply?
Supplies Lingual Gingiva of Max Posterior Teeth & Palatal Mucosa to Midline.
What does the Lesser Palatine Nerve course/travel through/supply?
Through Pterygopalatine Fossa-to- Pterygopalatine Canal-to- Lesser Palatine Canal-to- Lesser Palatine Foramen, supplies Sensory to mucous membrane of soft palate, 2-3mm distal to GP (if inject too distal, patient can’t breath)
What does the Pharyngeal Branch supply/course through?
No oral supply, however, supplies mucous membrane of nasopharynx, Pterygopalatine Fossa-to- Pharyngeal Canal-to- Nasopharynx (branches off V2 before infraorbital fissure)
What does the Posterior Superior Alveolar Nerve course/travel through?
Pterygopalatine Fossa -to- External Branch (to- Infratemporal surface of posterior maxilla), and to- Internal Branch (into-PSA Foramina)
What does the External Branch of PSA supply?
Facial Gingiva of Max Molars, except, for Mesio-buccal root of 1st Molar
What does the Internal Branch of PSA supply?
Maxillary Molars, except, for Mesio-buccal root of 1st Molar
What does the Infraorbital Nerve (continuation of Max Nerve, when pass infraorbital fissure becomes Infra. nerve) courses/travel through?
Through Pterygopalatine Fossa-to- Infraorbital Fissure-to-Infraorbital Groove-to-Infraorbital Canal-to- Infraorbital Foramen, then exit Orbit
What are the 5 sub-branches of Infraorbital Nerve?
Middle Superior Alveolar (MSA), Anterior Superior Alveolar (ASA), Lateral Nasal, Superior Labial, Inferior Palpebral
What does the MSA course through/supply?
descends lateral wall of Max Sinus, branches off while in infraorbital canal, supplies Facial Gingiva of Max Premolars & MB root of 1st Molar
What does the ASA course through/supply?
descends anterior wall of Max sinus, supplies Facial Gingiva of Max Anterior Teeth & Max Anterior Teeth
What does the Lateral Nasal Nerve Supply?
side of nose
What does the Superior Labial Nerve Supply?
upper lip
What does the Inferior Palpebral Nerve Supply?
lower eyelid
