Question

question
air - filled cavities found in some bones of the skull are called ____________.
answer
sulci
septa
sinuses
sutures
i dont know yet

Explanation:

Sulci are grooves on the brain - not related to skull cavities. Septa are partitions. Sutures are fibrous joints between skull bones. Sinuses are air - filled cavities in skull bones.

Answer:

C. sinuses