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sinus
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sinus

In biology, a sinus is a narrow cavity in the body. The paranasal sinuses in the skull communicate with the nose. Bacterial infection of these sinuses results in pain and inflammation and requires treatment with an antibiotic. Other examples of sinuses include the cavities in the membrane covering the brain through which the blood circulates.



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This type has numerous other sinus such as the inferior sagittal sinus, straight sinus, superior sagittal sinus, occipital sinus and the transverse sinuses, sigmoid sinuses as well as the superior petrosal sinus and inferior petrosal sinus.
3-5) VGAMs drain via the straight sinus to the torcula but, in the absence of the sinus, drainage is via a persistent falcine sinus to the post third of the superior sagittal sinus.
 
 
 
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