mastoid emissary vein

Medical Dictionary

mastoid emissary vein n.
A vein that connects the sigmoid sinus with the occipital vein or with one of the tributaries of the outer jugular vein by way of the mastoid foramen.

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