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

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Presentation on theme: "ALL BRANCHES OF TRIGEMINAL NERVE ARE LISTED IN HANDOOUT 'REFERENCE HANDOUT: TRIGEMINAL NERVE BRANCHES' BRANCHES OF THE TRIGEMINAL NERVE."— Presentation transcript:

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

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

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

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

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

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

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

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

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

12 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 V2 Nasal Branches Naso- Palatine Greater Palatine Lesser Palatine V2 - MAXILLARY - GSA Note: V2 branches from Pterygopalatine Fossa to Nasal Cavity are deep and can only be seen on bisected head

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

14 Zygomatic Infraorbital 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 Post Sup. Alveolar V2 - MAXILLARY - GSA Nose V2

15 TRIGEMINAL – SENSORY BRANCHES TO FACE V1 – OPHTHALMIC - to skin above orbit - Lacrimal Supraorbital Supratrochlear Infratrochlear External Nasal Nerve V2 – MAXILLARY - to skin of cheek below orbit - a. Zygomatico- temporal b. Zygomaticofacial c. Infraorbital V3- 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 INFRAORBITAL N. ZYGOMATICOTEMPORAL N. ZYGOMATICOFACIAL N.

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

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18 TRIGEMINAL NERVE SVE - FIRST BRANCHIAL ARCH MUSCLES

19 Deep Temporal 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 N. To Lat Pterygoid V3 - MANDIBULAR - GSA + SVE Buccal Branch Of Trigeminal

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

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


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