GENERAL ANATOMY
ANATOMY OF THE HEART
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Exit the aorta at a point immediately distal to the aortic semifinal valve
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Fill the right atrium with blood with each myocardial contraction
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Connect the right and left atria
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Deliver most O2 and nutrients to the myocardium while the myocardium is contracted
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Detailed explanation-1: -The 2 main coronary arteries are the left main and right coronary arteries. Left main coronary artery (LMCA). The left main coronary artery supplies blood to the left side of the heart muscle (the left ventricle and left atrium).
Detailed explanation-2: -Your coronary arteries are around and inside your heart muscle. They branch off your aorta, which is the main artery in your body. They start at the aortic root, which is the first part of your aorta that emerges from the left ventricle of your heart.
Detailed explanation-3: -The right coronary artery supplies blood mainly to the right side of the heart. The right side of the heart is smaller because it pumps blood only to the lungs. The left coronary artery, which branches into the left anterior descending artery and the circumflex artery, supplies blood to the left side of the heart.
Detailed explanation-4: -Two main coronary arteries originate from the base of the aorta as it exits the left ventricle: the left and right coronary arteries. These arteries further branch into smaller arteries to supply specific parts of the heart like the atria, ventricles, SA, and AV nodes.
Detailed explanation-5: -The right coronary artery supplies blood to the right ventricle. It then supplies the underside (inferior wall) and backside (posterior wall) of the left ventricle.