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

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. V1 – OPHTHALMIC DIVISION V2 – MAXILLARY DIVISON V3 – MANDIBULAR

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

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

  2. TRIGEMINAL NERVE – SENSORY INNERVATION TO SKIN OF HEAD – 3 DIVISIONS V1 – OPHTHALMIC DIVISION V2 – MAXILLARY DIVISON V3 – MANDIBULAR DIVISION Boundary- Lateral edge of eye Boundary Lateral edge of mouth

  3. TRIGEMINAL NERVE - V - GSA + SVE V1 V1 - OPHTHALMIC -Sup. Orbital fissure – GSA V2 - MAXILLARY - Foramen rotundum – GSA V3 - MANDIBULAR - - Foramen ovale – GSA & SVE V2 V3

  4. TRIGEMINAL NERVE - V V1 V1 – OPHTHALMIC -Sup. Orbital fissure – GSA V2 - MAXILLARY - Foramen rotundum – GSA V3 – MANDIBULAR - - Foramen ovale – GSA & SVE V2 V3

  5. V1 - OPHTHALMIC - GSA Supraorbital Notch (Foramen) to face Ant & Post Ethmoidal Foramina to Nasal Cavity Superior Orbital Fissure Nose Recall : Orbit is used as way to reach face, nasal cavity

  6. Infra- trochlear N. Supra- orbital N. Supra- trochlear N. V1 - OPHTHALMIC - ALL GSA 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 Cavity Ethmoid Sinus , Tip of Nose b) Long Ciliary N. Sensory to Cornea c) Infratrochlear N. Upper eyelid, Nose 3. Lacrimal Ant. and Post. Ethmoidal N. 1. Frontal 2. Nasociliary Long Ciliary Nn. V1

  7. TRIGEMINAL – SENSORY BRANCHES TO FACE SUPRAORBITAL N. LACRIMAL N. V2 – MAXILLARY - to skin of cheek below orbit - Zygomaticotemporal Zygomaticofacial Infraorbital SUPRATROCHLEAR N. INFRATROCHLEAR N. EXTERNAL NASAL N. V1 – OPHTHALMIC - to skin above orbit - a. Lacrimal b. Supraorbital c. Supratrochlear d. Infratrochlear e. External Nasal Nerve (branch of Ant. Ethmoidal N.) V3- MANDIBULAR - to skin of jaw and face below angle of mouth - Auriculotemporal Buccal Mental

  8. TRIGEMINAL NERVE - V V1 V1 – OPHTHALMIC -Sup. Orbital fissure – GSA V2 - MAXILLARY - Foramen rotundum – GSA V3 – MANDIBULAR - - Foramen ovale – GSA & SVE V2 V3

  9. V2 - MAXILLARY - GSA V2 - Maxillary enters Pterygopalatine Fossa NOSE note: Pterygomaxillary fissure is slit between lateral pterygoid plate and maxillary bone; Pterygopalatine fossa is space medial to slit LATERAL PTERYGOID PLATE Pterygomaxillary Fissure MAXILLARY BONE

  10. V2 - MAXILLARY - GSA 1. Meningeal Branch Dura of Middle Cranial Fossa (not shown) 2. Ganglionic branches a) Greater Palatine N. Hard Palate b) Lesser Palatine N. Soft Palate c) Nasopalatine Nasal Cavity Ant. part of hard Palate d) Nasal Branches Nasal Cavity Nasal Branches V2 Greater Palatine Lesser Palatine Naso- Palatine Note: V2 branches from Pterygopalatine Fossa to Nasal Cavity are deep and can only be seen on bisected head

  11. V2 - MAXILLARY - GSA Inferior Orbital Fissure Pterygomaxillary Fissure Post. Sup Alveolar For.

  12. V2 - MAXILLARY - GSA Nose Infraorbital Zygomatic 3. Posterior Superior Alveolar Maxillary molar teeth 4. Infraorbital Lower eyelid, nose, upper lip a) Ant. & Mid Sup Alveolar Other Maxillary teeth 5. Zygomatic - br. a) Zygomaticofacial b) Zygomaticotemporal Skin of check, temporal region V2 Post Sup. Alveolar

  13. TRIGEMINAL – SENSORY BRANCHES TO FACE V2 – MAXILLARY - to skin of cheek below orbit - a. Zygomatico- temporal b. Zygomaticofacial c. Infraorbital V1 – OPHTHALMIC - to skin above orbit - Lacrimal Supraorbital Supratrochlear Infratrochlear External Nasal Nerve ZYGOMATICOTEMPORAL N. ZYGOMATICOFACIAL N. NOTE: These are branches of V to face - Full list of all branches of V is on CD: Reference_handout_list_of_Trigeminal_nerve_branches_2010.doc INFRAORBITAL N. V3- MANDIBULAR - to skin of jaw and face below angle of mouth - Auriculotemporal Buccal Mental

  14. TRIGEMINAL NERVE - V V1 V1 – OPHTHALMIC -Sup. Orbital fissure – GSA V2 - MAXILLARY - Foramen rotundum – GSA V3 – MANDIBULAR - Foramen ovale – GSA & SVE V2 V3

  15. TRIGEMINAL NERVE SVE - FIRST BRANCHIAL ARCH MUSCLES

  16. V3 - MANDIBULAR - GSA + SVE • 1. Nervus Spinosus • Dura of Middle Cranial • Fossa (not shown) • 2. Motor to • Medial Pterygoid • Tensor Tympani • Tensor Palati (not shown) • 3. Ant Division • a. Nerve to Lat. Pterygoids • b. Masseteric N. • c. Deep Temporal • To Temporalis • d. Buccal Branch • Of Trigeminal • Sensory to Cheek Buccal Branch Of Trigeminal Deep Temporal N. To Lat Pterygoid

  17. V3 - MANDIBULAR - GSA + SVE Post Division 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 Auriculo- Temporal Lingual Inferior Alveolar N. TO MYLOHYOID MENTAL N.

  18. TRIGEMINAL – SENSORY BRANCHES TO FACE V2 – MAXILLARY - to skin of cheek below orbit - Zygomaticotemporal Zygomaticofacial Infraorbital V1 – OPHTHALMIC - to skin above orbit - Lacrimal Supraorbital Supratrochlear Infratrochlear External Nasal Nerve AURICULOTEMPORAL N. BUCCAL N. V3- MANDIBULAR - to skin of jaw and face below angle of mouth - a. Auriculotemporal b. Buccal c. Mental MENTAL N.

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