There are 4 paired air-filled sinuses within the skull. We can see their outlines in plain film imaging, although they are much more easily viewed on cross sectional imaging.
They are named after the bones they form in . They are lined with mucous membrane, and are continuous with the nasal cavity.
What might be some of the proposed roles of the paranasal and cranial sinuses?

Question

There are 4 paired air-filled sinuses within the skull. We can see their outlines in plain film imaging, although they are much more easily viewed on cross sectional imaging.  
 They are  named after the bones they form in . They are lined with mucous membrane, and are continuous with the nasal cavity.  
 What might be some of the proposed roles of the paranasal and cranial sinuses?

Answer

Lighten the skull

Answer

All of the above

Answer

Produce mucous for the nasal cavity

Answer

Act as “crumple zones” in the case of facial trauma to protect other structures

Answer

Warming and humidifying inspired air before reaching the lower airways

Answer

Increase resonance of speech

Crowdly

There are 4 paired air-filled sinuses within the skull. We can see their outline...

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