All of the following are functions of the paranasal sinuses except:

A. They form passageways for blood vessels and nerves.
B. They are lined with mucous membrane.
C. They function to lighten the weight of the skull.
D. They provide a resonance chamber for speech.



Answer :

Final answer:

The paranasal sinuses serve various functions, including warming and humidifying air, producing mucus, lightening the skull's weight, and providing a resonance chamber for speech. They do not form passageways for blood vessels and nerves.


Explanation:

Functions of the paranasal sinuses include:

  • Warm and humidify incoming air.
  • Produce mucus.
  • Lighten the weight of the skull.
  • Resonance chamber for speech.

One function missing in the options provided is: They do not form passageways for blood vessels and nerves.


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