Sinus venarum

The sinus venarum (also known as the sinus of the vena cava, or sinus venarum cavarum[1]) is the portion of the right atrium in the adult human heart[2] where the inner surface[3] of the right atrium is smooth,[2][3] whereas the rest of the inner surface is rough[3] (trabeculated[2]) due to the presence of pectinate muscles.[4] The sinus venarum represents the portion of the adult heart that develops from the right sinus horn of the[1] foetal sinus venosus.[3][1] The sinus venarum is demarcated from the rest of the right atrium by the crista terminalis (internally) and the sulcus terminalis (externally).[4]

References
  1. "Sinus venarum". TheFreeDictionary.com. Retrieved 2023-01-05.
  2. T. W., Sadler (2018). Langman's Medical Embryology (14th ed.). Philadelphia. p. 188. ISBN 978-1-4963-8390-7. OCLC 1042400100.{{cite book}}: CS1 maint: location missing publisher (link)
  3. Morton, David A. (2019). The Big Picture: Gross Anatomy. K. Bo Foreman, Kurt H. Albertine (2nd ed.). New York. p. 56. ISBN 978-1-259-86264-9. OCLC 1044772257.{{cite book}}: CS1 maint: location missing publisher (link)
  4. Waschke, Jens; Böckers, Tobias M.; Paulsen, Friedrich; Arnold, Wolfgang; Bechmann, Ingo, eds. (2018). Sobotta Anatomy Textbook: English Edition with Latin Nomenclature (1st ed.). München: Elsevier. p. 264. ISBN 978-0-7020-6760-0.
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