| confluens sinuum | A meeting place, at the internal occipital protuberance, of the superior sagittal, straight, occipital, drained by the two transverse sinuses of the dura mater. Synonym: confluens sinuum. (05 Mar 2000) |
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| confluens | Synonym: confluence, confluence. Origin: L. (05 Mar 2000) |
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| septum sinuum frontalium | The bony partition between the right and left frontal sinuses; it is often deflected to one side of the middle line. Synonym: septum sinuum frontalium. (05 Mar 2000) |
| septum sinuum sphenoidalium | The bony partition between the two sphenoidal sinuses, often deflected to one side of the mid line. Synonym: septum sinuum sphenoidalium. (05 Mar 2000) |