TRIGEMINAL NERVE - V V1 V1 – OPHTHALMIC -Sup. Orbital fissure – GSA

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Presentation transcript:

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

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

V1 - OPHTHALMIC - GSA Nose 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

V1 - OPHTHALMIC - GSA V1 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 Frontal Nasociliary Lacrimal V1

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

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

V2 - MAXILLARY - GSA 1. Meningeal Branch Dura of Middle Cranial Fossa 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 Branches V2 Naso- Palatine Greater Palatine Lesser Palatine Note: V2 branches from Pterygopalatine Fossa to Nasal Cavity are deep and can only be seen on bisected head

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

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

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

V3 - MANDIBULAR - GSA + SVE 1. Nervus Spinosus Dura of Middle Cranial Fossa 2. Motor to Medial Pterygoid Tensor Tympani Tensor Palati 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

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