Nasolacrimal duct drains into which nasal meatus?

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Multiple Choice

Nasolacrimal duct drains into which nasal meatus?

Explanation:
Tears drain into the inferior nasal meatus. After tears are produced and travel through the lacrimal apparatus, the nasolacrimal duct carries them to the nasal cavity and opens into the inferior meatus via the nasolacrimal ostium on the lateral wall beneath the inferior concha. The inferior meatus is the space directly below the inferior nasal concha and is the only nasal meatus that receives this drainage. The middle and superior meatuses mainly receive sinus openings (like the frontal, maxillary, and posterior ethmoidal sinuses) and are not tear drainage sites. The idea of a “common nasal meatus” isn’t used for this drainage pathway in standard anatomy.

Tears drain into the inferior nasal meatus. After tears are produced and travel through the lacrimal apparatus, the nasolacrimal duct carries them to the nasal cavity and opens into the inferior meatus via the nasolacrimal ostium on the lateral wall beneath the inferior concha. The inferior meatus is the space directly below the inferior nasal concha and is the only nasal meatus that receives this drainage. The middle and superior meatuses mainly receive sinus openings (like the frontal, maxillary, and posterior ethmoidal sinuses) and are not tear drainage sites. The idea of a “common nasal meatus” isn’t used for this drainage pathway in standard anatomy.

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