Crista supraventricularis

Crista supraventricularis is a muscular ridge within the right ventricle of the heart. It is located between the tricuspid and pulmonic valves, at the junction of the right ventricular anterior (free) wall and the interventricular septum. It has a "U-shaped" morphology, which serves as a "trough" for the proximal right coronary artery.[1]

Relationship to adjacent structures:

cups the right coronary artery sinus of the aorta
directly inferior to anterior leaflet of the tricuspid valve

References

James, Thomas N. (1985-11-01). "Anatomy of the crista supraventricularis: Its importance for understanding right ventricular function, right ventricular infarction and related conditions". Journal of the American College of Cardiology. 6 (5): 1083–1095. doi:10.1016/S0735-1097(85)80313-2. ISSN 0735-1097. PMID 2931470.

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[1] James, Thomas N. (1985-11-01). "Anatomy of the crista supraventricularis: Its importance for understanding right ventricular function, right ventricular infarction and related conditions". Journal of the American College of Cardiology. 6 (5): 1083–1095. doi:10.1016/S0735-1097(85)80313-2. ISSN 0735-1097. PMID 2931470.