Functional Structure of Skull (From a mechanical point of view)

• In the non- or less force loading areas, adipose tissue and pneumatic cavities fill those mechanically neutral areas.

a

b

c

e

d

1) Paranasal sinuses     a) Frontal sinus     b) Ethmoid sinus     c) Sphenoid sinus     d) Maxillary sinus 2) Accessory tympanic spaces     e) Mastoid air cells