Abstract

The myocardium, responsible for the heart's rhythmic contraction, is supplied by coronary arteries originating from the ascending aorta. This study investigated the origin, branching pattern, termination, and variations of coronary arteries in human cadaveric hearts. Materials & methods: The research was conducted over a period of two years at the Department of Anatomy, in a government and a private medical college in central India. The study examined a total of 30 cadaveric hearts from adult donors aged 25 to 70 years, which were fixed using 10% formaldehyde. Results: The results demonstrated that the right coronary artery (RCA) consistently originated from the anterior aortic sinus. In 25 hearts, the left coronary artery (LCA) arose from the left posterior coronary sinus, while one heart displayed LCA originating from the right posterior sinus of the ascending aorta. Notably, 71% of cases exhibited a single opening in the anterior aortic sinus, and 82% of cases had one opening in the left posterior sinus. Conclusion: The study's significant finding was that the majority of cases showed the right ostia situated just below the sinutubular ridge. These findings enhance our understanding of the coronary artery's anatomical variations and course, providing valuable insights for cardiovascular health and medical interventions.

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