<prompt> Opening of the nasolacrimal duct is inInferior meatusSuperior meatusMiddle meatusSphenoethmoidal recess  <response>: Ans. is a i.e. Inferior meatus Openings in the lateral wall of nasal cavity Inferior meatus : Nasolacrimal ductMiddle meatus : Anterior ethmoidal sinusFrontal sinusMaxillary sinusSuperior meatus : Posterior ethmoidal sinusesSphenoethmoidal recess : Sphenoid sinusNote: that the nasolacrimal duct opens into the inferior meatus but if its blocked and a DCR Dacryocystorhinostomy operation is performed the new opening is in the middle meatus 