Which statement is NOT true of the paranasal sinuses?
A)They contain air.
B)They are lined with ciliated epithelium.
C)They provide resonance for the voice.
D)They make the skull heavier in weight.

Question

Quizplus · Accepted Answer

The statement "They make the skull heavier in weight" is not true of the paranasal sinuses. In fact, the presence of air-filled spaces in the sinuses actually makes the skull lighter, reducing the overall weight of the head.

Which Statement Is NOT True of the Paranasal Sinuses