Valve of coronary sinus

The valve of the coronary sinus (Thebesian valve) is a semicircular fold of the lining membrane of the right atrium, at the orifice of the coronary sinus. It is situated at the base of the inferior vena cava.

Valve of the coronary sinus
Interior of right side of heart. (Valve of the coronary sinus labeled at bottom left.)
Latinvalvula sinus coronarii
Anatomical terminology

The valve may vary in size, or be completely absent.[1]

It may prevent the regurgitation of blood into the sinus during the contraction of the atrium.

This valve may be double or it may be cribriform.

It is named for German anatomist Adam Christian Thebesius.[2][3][4]


This article incorporates text in the public domain from page 531 of the 20th edition of Gray's Anatomy (1918)

  1. P. Felle, J. G. Bannigan. Anatomy of the valve of the coronary sinus (thebesian valve). Clinical Anatomy. Vol. 7 (1), 10-12. Abstract
  2. synd/4012 at Who Named It?
  3. A. C. Thebesius. Disputatio medica inauguralis de circulo sanguinis in corde. Doctoral dissertation, Leiden, 1708.
  4. Loukas M, Clarke P, Tubbs RS, Kolbinger W (2007). "Adam Christian Thebesius, a historical perspective". International Journal of Cardiology. 129 (1): 138–40. doi:10.1016/j.ijcard.2007.06.048. PMID 17692957.
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