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BIO 180

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
describe the sinus of the skull?   air filled chamber that makes a bone weigh less and the mucous membrane lining them produces mucus that moistens and cleans the air in and adjacent to the sinus.  
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frontal sinus?   mucous secretions of the frontal sinuses within this bone help flush the surfaces of the nasal cavities  
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sphenoid sinus?   help clean the surfaces of the nasal surfaces  
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ethmoid sinus?   ethmoidal air cells within this bone flush the surfaces of the nasal cavities  
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maxillary sinus?   produce mucus that flushes the inferior surfaces of the nasal cavities  
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what is necessary for the mucous membrane?   they are essential for respiratory  
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