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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Cough reflex on scratching the floor of external auditory meatus is due to which nerve?
assistant
The correct answer is  Nerve Supply of External acoustic meatus Anterior wall and roof by auriculotemporal nerve Posterior wall and floor by auricular branch of vagus nerve (Arnold N) Posterior wall of auditory canal also receives innervations by facial nerve through auricular branch of vagus Cough reflex is d/t internal laryngeal N. Cough's reflex during syringing is d/t Arnold's Nerve