Which bone does not contain a paranasal sinus?
A) Sphenoid bone
B) Frontal bone
C) Ethmoid bone
D) Mandible
E) Maxilla

Question

Quizplus · Accepted Answer

The mandible is the only bone listed that does not contain a paranasal sinus. Paranasal sinuses are air-filled cavities located within the bones of the skull and face. They are lined with mucous membranes and help to warm and moisten the air we breathe. The sphenoid, frontal, ethmoid, and maxilla bones all contain paranasal sinuses.

Which Bone Does Not Contain a Paranasal Sinus