Question

which of the following bones do not contain a sinus?
frontal
nasal
sphenoid
maxillary

Explanation:

To solve this, we recall the anatomy of facial and cranial bones. Sinuses are air - filled cavities in some bones. The frontal bone has the frontal sinus, the sphenoid bone has the sphenoid sinus, and the maxillary bone has the maxillary sinus. The nasal bones are small, paired bones that form the bridge of the nose and do not contain a sinus.

Answer:

B. Nasal