All are Pneumatic bones except:
Ans. C. ParietalPneumatic 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
Sphenoid
Ethmoid
Parietal
Frontal
Head & Neck