basilar plexus


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basilar plexus

A venous sinus filled with anastomosing vascular channels; it is located in the dura that covers the clivus of the skull, under the brainstem. Rostrally, the basilar plexus interconnects with the cavernous sinuses, laterally with the superior and inferior petrosal sinuses, and caudally with the occipital and marginal sinuses and the vertebral venous plexuses, which continue outside the foramen magnum.
See also: plexus
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