Emissary vein

As Emissarvenen ( veins emissary ) in the are anatomy medium-sized short-circuit connections between superficial cranial veins and sinuses of the dura mater called.

There are four emissary veins:

1. The paired vena emissaria parietalis connects the vena temporalis superficialis through the foramen parietale with the sinus sagittalis superior in the middle under the skull ,
2. the also paired vena emissaria mastoidea connects the vena occipitalis through the foramen mastoideum with the sinus sigmoideus ,
3. the equally paired Vena emissaria condylaris connects the plexus venosus vertebralis externus through the Canalis condylaris with the Sinus sigmoideus and
4. the vena emissaria occipitalis runs through the protuberantia occipitalis and connects the plexus venosus vertebralis externus with the confluens sinuum .

In addition, there are smaller emissary veins, but they are variable.

Clinical significance

In the clinic, emissary veins are relevant for inflammation of the scalp , since germs and pus can penetrate the cranial cavity from superficial areas and cause a septic sinus thrombosis there . In addition, tumor cells can settle through the veins and cause metastases inside the skull.

Individual evidence

1. ↑ ^{a b} Wolfgang Dauber: Feneis' Bild-Lexikon der Anatomie . Georg Thieme, Stuttgart 2005, ISBN 978-3-13-330109-1 , p. 282
2. ↑ Johannes W. Rohen: Topographische Anatomie: Textbook with special consideration of the clinical aspects and the imaging procedures . Schattauer Verlag, Stuttgart 2008, ISBN 978-3-7945-2616-1 , p. 198.
3. ↑ Michael H. Stoffel: Functional neuroanatomy for veterinary medicine . Enke, Stuttgart 2010, ISBN 978-3-8304-1155-0 , p. 119.