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The sigmoid sinuses (left & right), within a human head, are 2 areas beneath the brain, which allow blood veins to span the area, from the center of the head downward. They drain from the transverse sinuses (under the back of the brain) to the internal jugular vein. See diagram (at right): labeled under the brain as "PARS SIGMOID." (for Latin: sigmoideus).
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|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Sigmoid_sinus". A list of authors is available in Wikipedia.|