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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.
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With regard to paranasal sinuses, true is
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The correct answer is  Paranasal sinuses are rudimentary in newborn. Sphenoid sinus drains into sphenoethmoidal recess and not into middle meatus. Sphenoid sinus is supplied by posterior ethmoidal nerve.