Sphenoidal sinus drains into ?
High-Yield Explanation
Ans. is 'd' i.e., Sphenoethmoidal recess Pa of lateral nasal wall Openings Inferior Nasolacrimal duct Middle Frontal sinus, Maxillary sinus, Anterior ethmoidal sinus Superior Posterior ethmoidal sinus Sphenoethmoidal recess Sphenoid sinus