What are the structures that are air-filled spaces of the skull bones?
A)Sutures
B)Fontanels
C)Paranasal sinuses
D)Lacrimal ducts

Question

Quizplus · Accepted Answer

The paranasal sinuses are air-filled spaces within the skull bones. Sutures are joints between the skull bones, fontanels are soft spots in the skull of a newborn, and lacrimal ducts are small canals that drain tears from the eye into the nasal cavity.

What Are the Structures That Are Air-Filled Spaces of the Skull