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inferior petrosal sinus

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n.

A paired sinus of the dura mater that connects the cavernous sinus with the superior bulb of the internal jugular vein.

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“Evoke” and “invoke” both derive from the same Latin root “vocāre.”

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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

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