Question

question 1 of 10
which of the following is not a characteristic of the sinuses?
they help to resonate the voice.
they are air filled spaces located in maxillary, frontal, sphenoid, and ethmoid bones of the skull.
increase the weight of the skull.
they open into the nasal cavity.

Explanation:

• Sinuses are air - filled spaces in the maxillary, frontal, sphenoid, and ethmoid bones of the skull.
• They open into the nasal cavity.
• They help in voice resonance.
• Since they are air - filled, they do not increase the weight of the skull.

Answer:

"Increase the weight of the skull."