V1 – OPHTHALMIC -Sup. Orbital fissure – GSAV2 - MAXILLARY - Foramen rotundum – GSAV3 – MANDIBULAR - - Foramen ovale – GSA & SVE

TRIGEMINAL NERVE - V

V1

V2

V3

V1 – OPHTHALMIC -Sup. Orbital fissure – GSAV2 - MAXILLARY - Foramen rotundum – GSAV3 – MANDIBULAR - - Foramen ovale – GSA & SVE

TRIGEMINAL NERVE - V

V1

V2

V3

Superior Orbital Fissure

SupraorbitalNotch (Foramen) to face

Nose

V1 - OPHTHALMIC - GSA

Ant & PostEthmoidal Foramina to Nasal Cavity

Recall : Orbit is used as way to reach face, nasal cavity

Nasociliary

1. Frontal N. a) Supraorbital N. b) Supratrochlear N.Forehead, Upper Eyelid

2. Lacrimal N.Upper eyelid

3. Nasociliary N.a) Ant. and Post. Ethmoidal N.Nasal CavityEthmoid Sinus , Tip of Noseb) Long Ciliary N.Sensory to Corneac) Infratrochlear N.Upper eyelid, Nose

V1 - OPHTHALMIC - GSA

Frontal

Lacrimal

V1

V1 – OPHTHALMIC -Sup. Orbital fissure – GSAV2 - MAXILLARY - Foramen rotundum – GSAV3 – MANDIBULAR - - Foramen ovale – GSA & SVE

TRIGEMINAL NERVE - V

V1

V2

V3

PterygomaxillaryFissure

V2 - Maxillary entersPterygopalatine Fossa

V2 - MAXILLARY - GSA

note:Pterygomaxillaryfissure is slitbetween lateralpterygoid plateand maxillary bone;Pterygopalatinefossa is spacemedial to slit

MAXILLARY BONE

LATERAL PTERYGOID PLATE

NOSE

1. Meningeal BranchDura of Middle Cranial Fossa

2. Ganglionic branchesa) Greater Palatine N.Hard Palateb) Lesser Palatine N.Soft Palatec) NasopalatineNasal CavityAnt. part of hard Palated) Nasal BranchesNasal Cavity

V2

Nasal Branches

Naso-Palatine

Greater Palatine

LesserPalatine

V2 - MAXILLARY - GSA

Note: V2 branches from Pterygopalatine Fossa to Nasal Cavity are deep and can only be seen on bisected head

Post. SupAlveolar For.

PterygomaxillaryFissure

Inferior Orbital Fissure

V2 - MAXILLARY - GSA

Zygomatic

Infraorbital

3. PosteriorSuperior AlveolarMaxillary molar teeth

4. InfraorbitalLower eyelid, nose, upper lipa) Ant. & Mid SupAlveolarOther Maxillary teeth

5. ZygomaticSkin of check

PostSup. Alveolar

V2 - MAXILLARY - GSANose

V1 – OPHTHALMIC -Sup. Orbital fissure – GSAV2 - MAXILLARY - Foramen rotundum – GSAV3 – MANDIBULAR - Foramen ovale – GSA & SVE

TRIGEMINAL NERVE - V

V1

V2

V3

DeepTemporal

1. Nervus SpinosusDura of Middle CranialFossa

2. Motor to Medial PterygoidTensor TympaniTensor Palati

3. Ant Division

a. Nerve to Lat. Pterygoidsb. Masseteric N.c. Deep TemporalTo Temporalisd. Buccal BranchOf TrigeminalSensory to Cheek

N. To LatPterygoid

V3 - MANDIBULAR - GSA + SVE

Buccal BranchOf Trigeminal

Auriculo-Temporal

Post Division

a. AuriculotemporalSkin of Temple, ScalpExternal ear, TMJb. LingualTouch to Ant 2/3Tonguec. Inf. Alveolar N.Sens to Lower Teethi) Mental N.Skin Lower Jawii) Nerve to MylohyoidMotor to Mylohyoid& Ant. Belly of Digastric

InferiorAlveolar

Lingual

V3 - MANDIBULAR - GSA + SVE