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Nerve supply of the ear
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June 2025

2024/2025
The ear receives its nerve supply from both cranial and cervical nerves, ensuring sensation and function in its external, middle, and inner parts. The external ear, including the auricle and external auditory canal, is primarily innervated by the great auricular nerve and lesser occipital nerve (from cervical plexus), and branches from the auriculotemporal nerve (branch of mandibular nerve, CN V3), facial nerve (CN VII), and vagus nerve (CN X). The tympanic membrane has dual innervation: the ext...
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