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CN V Distribution
Trigeminal Nerve and its distribution in the skin
| Question | Answer |
|---|---|
| Supraorbital | V1 - skin of middle superior eyelid; skin on anterolateral forehead and scalp to vertex |
| supratrochlear | V1 - skin of medial of superior eyelid; skin of anteromedial forehead |
| lacrimal | V1 - skin on lateral superior eyelid |
| infratrochlear | V1 - skin just lateral to the nose; for eyelids too |
| external nasal | V1 - skin of nasal |
| infraorbital | V2 - skin of inferior eyelid, cheek, lateral nose, oral mucosa, upper lip |
| zygomaticofacial | V2 - skin of prominence of cheek (cheekbone) |
| zygomaticotemporal | V2 - skin of temple/temporal |
| auricotemporal | V3 - skin of auricle and posterior 2/3 of temple; gets to part of ear too (tympanic) |
| buccal | V3 - skin of posterior cheek (near jaw line) |
| mental | V3 - skin of chin |