The maxillary air sinus opens into middle meatus at______________?

Correct answer: D. Hiatus semilunaris

  • A. Infundibulum
  • B. Summit of infundibulum
  • C. Bulla ethmoidalis
  • D. Hiatus semilunaris

Explanation

The maxillary sinus drains into the middle meatus through the hiatus semilunaris, usually via the ethmoidal infundibulum. The bulla ethmoidalis is an adjacent ethmoidal structure, not the opening of the maxillary sinus.

Submitted by a TestUstad contributor and published by the TestUstad editorial teamLast updated
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