Multiple choice

Which of the following sinuses does not open in the middle meatus of nose?

  1. Frontal sinus

  2. Ethmoidal sinus

  3. Sphenoidal sinus

  4. Maxillary sinus

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sphenoidal sinus does not open in the middle meatus. The sphenoidal sinus drains into the spheno-ethmoidal recess that is superior to the superior concha.