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| __NOTOC__
| | #REDIRECT [[Venae cordis minimae]] |
| {{Infobox Vein |
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| Name = Smallest cardiac veins |
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| Latin = Venae cardiacae minimae, <br>venae cordis minimae |
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| GraySubject = 166 |
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| GrayPage = 643 |
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| {{CMG}}
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| {{SK}} Smallest cardiac veins; Thebesian veins
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| ==Overview==
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| The veins of Thebesius (or Thebesian veins) are minute valveless [[vein]]s in the walls of all four [[heart]] chambers and they are often confused with the distinct set of arterial connections, the "vessels of Wearn".<ref>{{cite journal|last=Snodgrass|first=Brett Thomas|title=Vessels Described by Thebesius and Pratt Are Distinct From Those Described by Vieussens and Wearn|journal=The American Journal of Cardiology|date=1 July 2012|volume=110|issue=1|pages=160|doi=10.1016/j.amjcard.2012.04.005|pmid=22704295}}</ref> They are most abundant in the [[right atrium]] and least in the [[left ventricle]]. They drain the [[myocardium]]<ref name="AgurDalley2009">{{cite book|author1=A. M. R. Agur|author2=Arthur F. Dalley|title=Grant's atlas of anatomy|url=http://books.google.com/books?id=H20V4pCpACYC&pg=PA53|accessdate=31 October 2010|year=2009|publisher=Lippincott Williams & Wilkins|isbn=978-0-7817-7055-2|pages=53–}}</ref> and pass through the [[endocardium|endocardial layer]] to empty mostly into the right atrium, but a few empty into the ventricles. The openings of the chambers are called the ''[[foramina venarum minimarum]]''.
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| The Thebesian venous network is considered an alternative (secondary) pathway of venous drainage of the [[myocardium]].
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| They are named after the German [[anatomist]] [[Adam Christian Thebesius]], who described them in a 1708 treatise called ''Disputatio medica inauguralis de circulo sanguinis in corde''.<ref>{{WhoNamedIt|synd|4013}}</ref><ref>A. C. Thebesius. Disputatio medica inauguralis de circulo sanguinis in corde. Doctoral dissertation, Leiden, 1708.</ref>
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| ==References==
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| {{Reflist|2}}
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| == External links ==
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| * [http://www.gpnotebook.co.uk/simplepage.cfm?ID=-107347908 GPnotebook - "venae cordis minimae"]
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| * [http://www.medscape.com/viewarticle/550354_2 Medscape Today; Coronary Venous System]
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| {{Veins of the thorax and vertebral column}}
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| [[Category:Cardiology]]
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| [[Category:Cardiac anatomy]]
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