BRANCHES OF THE TRIGEMINAL NERVE ALL BRANCHES OF

BRANCHES OF THE TRIGEMINAL NERVE ALL BRANCHES OF TRIGEMINAL NERVE ARE LISTED IN HANDOOUT 'REFERENCE HANDOUT: TRIGEMINAL NERVE BRANCHES'

TRIGEMINAL NERVE – SENSORY INNERVATION TO SKIN OF HEAD – 3 DIVISIONS V 1 – OPHTHALMIC DIVISION Boundary. Lateral edge of eye V 2 – MAXILLARY Boundary DIVISON Lateral edge of mouth V 3 – MANDIBULAR DIVISION

TRIGEMINAL NERVE - V - GSA + SVE V 1 V 2 V 3 V 1 - OPHTHALMIC Sup. Orbital fissure – GSA V 2 - MAXILLARY Foramen rotundum – GSA V 3 - MANDIBULAR - Foramen ovale – GSA & SVE

TRIGEMINAL NERVE - V V 1 V 2 V 3 V 1 – OPHTHALMIC Sup. Orbital fissure – GSA V 2 - MAXILLARY Foramen rotundum – GSA V 3 – MANDIBULAR - Foramen ovale – GSA & SVE

V 1 - OPHTHALMIC - GSA Supraorbital Notch (Foramen) to face Superior Orbital Fissure Ant & Post Ethmoidal Foramina to Nasal Cavity Nose Recall : Orbit is used as way to reach face, nasal cavity

Supraorbital N. Supratrochlear N. Infratrochlear N. V 1 - OPHTHALMIC ALL GSA 1. Frontal N. a) Supraorbital N. b) Supratrochlear N. Forehead, Upper Eyelid 3. Lacrimal Ant. and Post. Ethmoidal N. 2. Lacrimal N. 1. Frontal Long Ciliary Nn. V 1 2. Nasociliary Upper eyelid 3. Nasociliary N. a) Ant. and Post. Ethmoidal N. Nasal Cavity Ethmoid Sinus , Tip of Nose b) Long Ciliary N. Sensory to Cornea c) Infratrochlear N. Upper eyelid, Nose

TRIGEMINAL – SENSORY BRANCHES TO FACE LACRIMAL N. V 2 – MAXILLARY to skin of cheek below orbit Zygomaticotemporal Zygomaticofacial Infraorbital V 3 - MANDIBULAR to skin of jaw and face below angle of mouth Auriculotemporal Buccal Mental SUPRAORBITAL N. SUPRATROCHLEAR N. INFRATROCHLEAR N. EXTERNAL NASAL N. V 1 – OPHTHALMIC to skin above orbit a. Lacrimal b. Supraorbital c. Supratrochlear d. Infratrochlear e. External Nasal Nerve (branch of Ant. Ethmoidal N. )

TRIGEMINAL NERVE - V V 1 V 2 V 3 V 1 – OPHTHALMIC Sup. Orbital fissure – GSA V 2 - MAXILLARY Foramen rotundum – GSA V 3 – MANDIBULAR - Foramen ovale – GSA & SVE

V 2 - MAXILLARY - GSA V 2 - Maxillary enters Pterygopalatine Fossa NOSE LATERAL PTERYGOID PLATE Pterygomaxillary Fissure note: Pterygomaxillary fissure is slit between lateral pterygoid plate and maxillary bone; Pterygopalatine fossa is space medial to slit MAXILLARY BONE

V 2 - MAXILLARY - GSA 1. Meningeal Branch Dura of Middle Cranial Fossa (not shown) Nasal Branches Naso. Palatine Greater Palatine 2. Ganglionic branches V 2 a) Greater Palatine N. Hard Palate b) Lesser Palatine N. Soft Palate c) Nasopalatine Nasal Cavity Ant. part of hard Palate d) Nasal Branches Lesser Nasal Cavity Palatine Note: V 2 branches from Pterygopalatine Fossa to Nasal Cavity are deep and can only be seen on bisected head

V 2 - MAXILLARY - GSA Inferior Orbital Fissure Pterygomaxillary Fissure Post. Sup Alveolar For.

V 2 - MAXILLARY - GSA Nose Infraorbital Zygomatic V 2 3. Posterior Superior Alveolar Maxillary molar teeth 4. Infraorbital Lower eyelid, nose, upper lip a) Ant. & Mid Sup Alveolar Other Maxillary teeth Post Sup. Alveolar 5. Zygomatic - br. a) Zygomaticofacial b) Zygomaticotemporal Skin of check, temporal region

TRIGEMINAL – SENSORY BRANCHES TO FACE V 2 – MAXILLARY to skin of cheek below orbit a. Zygomaticotemporal b. Zygomaticofacial c. Infraorbital ZYGOMATICOTEMPORAL N. V 1 – OPHTHALMIC to skin above orbit Lacrimal Supraorbital Supratrochlear Infratrochlear External Nasal Nerve ZYGOMATICOFACIAL N. INFRAORBITAL N. V 3 - MANDIBULAR to skin of jaw and face below angle of mouth Auriculotemporal Buccal Mental NOTE: These are branches of V to face - Full list of all branches of V is on CD: Reference_handout_list_of _Trigeminal_nerve_branch es_2010. doc

TRIGEMINAL NERVE - V V 1 V 2 V 3 V 1 – OPHTHALMIC Sup. Orbital fissure – GSA V 2 - MAXILLARY Foramen rotundum – GSA V 3 – MANDIBULAR Foramen ovale – GSA & SVE

TRIGEMINAL NERVE SVE - FIRST BRANCHIAL ARCH MUSCLES

V 3 - MANDIBULAR - GSA + SVE Deep Temporal Buccal Branch Of Trigeminal 1. Nervus Spinosus Dura of Middle Cranial Fossa (not shown) 2. Motor to Medial Pterygoid Tensor Tympani Tensor Palati (not shown) 3. Ant Division N. To Lat Pterygoid a. Nerve to Lat. Pterygoids b. Masseteric N. c. Deep Temporal To Temporalis d. Buccal Branch Of Trigeminal Sensory to Cheek

V 3 - MANDIBULAR - GSA + SVE Post Division Auriculo. Temporal Lingual Inferior Alveolar N. TO MYLOHYOID a. Auriculotemporal Skin of Temple, Scalp External ear, TMJ b. Lingual Touch to Ant 2/3 Tongue c. Inf. Alveolar N. Sens to Lower Teeth i) Mental N. Skin Lower Jaw ii) Nerve to Mylohyoid Motor to Mylohyoid & Ant. Belly of Digastric MENTAL N.

TRIGEMINAL – SENSORY BRANCHES TO FACE V 2 – MAXILLARY to skin of cheek below orbit Zygomaticotemporal Zygomaticofacial Infraorbital V 1 – OPHTHALMIC to skin above orbit Lacrimal Supraorbital Supratrochlear Infratrochlear External Nasal Nerve AURICULOTEMPORAL N. BUCCAL N. V 3 - MANDIBULAR to skin of jaw and face below angle of mouth a. Auriculotemporal b. Buccal c. Mental MENTAL N.