Important fact regarding Nerve Supply of Head & Neck: Trigeminal (V) = main sensory. V1 = Ophthalmic. V2 = Maxillary. V3 = Mandibular (only motor + sensory). Lingual nerve = taste anterior 2/3 (via chorda tympani from VII). IAN block = V3.

This fact is from Nerve Supply of Head & Neck in Oral Anatomy, Histology & Embryology. It is a commonly tested concept in NEET MDS examinations. Understanding this fact is crucial for answering MCQs correctly.

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More Facts from Nerve Supply of Head & Neck

Trigeminal V = main sensory nerve head face

V1 Ophthalmic = sensory only forehead

V2 Maxillary = sensory only midface

V3 Mandibular = only division with motor and sensory

Lingual nerve = taste anterior two-thirds via chorda tympani from VII

IAN block anesthetizes V3 = IANB

Facial nerve VII = motor muscles of facial expression

Marginal mandibular branch = important surgical landmark.