What are the functions of the sinuses?
A) to drain fluid from the brain and to allow the brain to expand
B) to give a resonant sound to the voice and to allow the brain to expand
C) to lighten the skull and drain fluid from the brain
D) to lighten the skull and give a resonant sound to the voice
E) to allow the brain to expand and to lighten the skull

Question

Quizplus · Accepted Answer

The sinuses reduce the weight of the skull and give a resonant sound to the voice.

What Are the Functions of the Sinuses