What is the Purpose of the Paranasal Sinuses That Connect

Question

What is the purpose of the paranasal sinuses that connect with the nasal cavity?
A)Gas exchange
B)Reduce the weight of the skull
C)Resonance chambers for speech
D)Both reduce the weight of the skull and resonance chambers for speech.

Accepted Answer

The paranasal sinuses connect with the nasal cavity to both reduce the weight of the skull and act as resonance chambers for speech. The air-filled spaces help to lighten the skull and create sound resonance for speech.