Illustrated Encyclopedia of Human Anatomic Variation: Opus II: Cardiovascular System
Ronald A. Bergman, PhD
Adel K. Afifi, MD, MS
Ryosuke Miyauchi, MD
Peer Review Status: Internally Peer Reviewed
Three different coronary artery patterns are shown based in a study of 94 human hearts.
A: Balanced coronary artery distrubution.
B: Left coronary artery preponderance.
C: Right coronary artery preponderance.
The heart is seen from the posterior aspect. The loop indicates the crux (the point where the posterior interventricular and atrioventricular sulci meet). In the study of 94 human hearts, the authors found left coronary artery preponderance to be more frequent in males (18.2%) than females (2.6%). Right coronary artery preponderance is more common in females (23.1%) than males (14.6%).
Redrawn from Ahmed, S.H., El-Rakhawy, M.T., Abdalla, A. and R.G. Harrison. A new conception of coronary preponderance. Acta Anat. 83-94, 1972.
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