<prompt> Maxillary sinus drains into -Inferior meatusMiddle meatusSuperior meatusSphenoethmoidal recess  <response>: Ans. is b i.e.. Middle meatus Part of lateral nasal wallOpeningsInferiorNasolacrimal ductMiddleFrontal sinus, Maxillary sinus, Anterior ethmoidal sinusSuperiorPosterior ethmoidal sinusSphenoethmoidal recessSphenoid sinus 