The myocardium receives its nutrients from the first two arteries branching off the aorta, the right and left coronary arteries.

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The myocardium, which is the muscular layer of the heart wall, receives its blood supply from the right and left coronary arteries. These arteries branch off directly from the aorta, the main artery leaving the heart, ensuring the heart muscle gets the oxygen and nutrients it needs.

The Myocardium Receives Its Nutrients from the First Two Arteries