All of the following bones are pneumatic except:
Ans. C. MandiblePneumatic bones are those bones which contain an air filled cavity within them. In humans, they are seen in relation to the nasal cavity - they enclose the paranasal sinuses. Pneumatic bones are - maxilla, frontal bone, sphenoid and ethmoid.
Maxilla
Frontal
Mandible
Ethmoid
Joints