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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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Sphenoid sinus drains into which of the following
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The correct answer is  The right and left sphenoidal air sinuses lie within the body of sphenoid bone. They are separated by a septum. The two sinuses are usually unequal in size Each sinus opens into the sphenomandibular recess of corresponding half of the nasal cavity. Ref BDC volme3,6th edition pg 246