2. Remove the epicardium and identify the coronary blood vessels.
Next, expose the coronary arteries. They can be found embedded in fat, usually within the sulci of the heart. Using blunt dissection, elevate the epicardium overlying the fat and pull the fat away from the coronary vessels. The coronary arteries arise from the aorta under the auricles of the atria. It may be easier to use the blunt end of the forceps to scrape the fat off the vessels. Note where the coronary arteries arise from the aorta. The left coronary artery can be found under the left auricle. The left immediately branches into the anterior interventricular artery and the circumflex artery. The right coronary comes off under the right auricle. It is often crossed by anterior cardiac veins.
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