Anatomy Trigeminal Nerve
pons with
trigeminal ganglion
3 main branches
GSA All
V1 Opthalmic
superior Orbital Fissure
nasociliary nerve medial
Conjunctiva/ orbit globe
External Nasal N
excited by light, can lead to sneezing from light
V2 Maxillary branch
Anterior Ethmoidal N!
frontal nerve
supraorbital branch through foramen, lateral to trochlear
GSA Touch, Temperature Pain Sensation
Sensation to:
Ethmoid and Frontal Sinuses
Orbit Globe/Conjunctiva
Lacrimal Gland
Nasal Septum
Skin on the Tip of the Nose, Forehead and Superior Eyelid
GSA Touch, Temperature, Pain& Sensation
Maxillary and Sphenoid Sinuses
Superior Teeth and Alveolar Processes
lateral Nasal Cavity
Palate
Skin of zygomatic arches and checks
GSA Touch, Temp & Pain Sensation
Inferior Teeth and Alveolar Processes
Tongue
Skin of Jaw, Chin and Temporal/Auricular Region
Buccinator Muscle
foramen rotundum
SVE Motor Special to
Mylohyoid Muscle
Anterior Digastric Muscle
Muscles of Mastication
Tensor Muscles of the Tympanic Membrane and Palate
V3 Mandibular branch
pterygopalantine fossa
supratrochlear n medial to orbital
lacrimal l-lateral branches
splits into NFL (medial to lateral)
pterygopalantine fossa pterygopalantine ganglia*
infraorbital
superior alvolar
zygomatic
through maxillary sinus
hitchhiking at infraorbital fissure to to lacrimal gland via zygomatic branch
deep petrosal n from
great petrosal
PNS synapses at ganglia
Facial nerve PNS info
internal carotid plexus SNS
no synapse
nasopalantine
lesser palantine n
soft palate
greater palantine n
foramen ovale IA M (mandib foramen ) blam
no vision
buccal-buccinator facial does motor
lingual
auriculotemporal
hitchhiker
chorda tympani of facial
ant 2/3 tongue touch, pain, temp
mandibular foramen
inferior alveolar
mental n
Mylohyoid N
mastication masseter
ant digastric
tensors
hitchhikers
hard palat
temporalis, masseter, med& lateral pterygoid
threadlike
dental anastesia
lacrimal gland
frontal sinus
boney ethmoid sinus not mucosa
superior eylid
inferior teeth
temporal/auricular region
superoir to hypoglossal
infratrochlear N
nasal septum
cheeks
through foramen lateral nsaal wall
TMJ
TMJ
twhole tongue GSA touch pain temp
submandibular gland secretino
ant 2/3 taste