ANATOMY

Detailed explanation-1: -The right and left coronary arteries supply blood to your heart. They’re the first branches off the aorta, which is the main artery in your body. These arteries and their branches supply all parts of the heart muscle with blood.

Detailed explanation-2: -Coronary arteries supply blood to the heart muscle. Like all other tissues in the body, the heart muscle needs oxygen-rich blood to function.

Detailed explanation-3: -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-4: -When both the right and left coronary arteries contribute to these branches, the heart has a “balanced” circulation. The coronary arteries are composed of three layers: tunica intima, tunica media, and tunica adventitia.

Detailed explanation-5: -Your heart is divided into four chambers. You have two chambers on the top (atrium, plural atria) and two on the bottom (ventricles), one on each side of the heart. Right atrium: Two large veins deliver oxygen-poor blood to your right atrium. The superior vena cava carries blood from your upper body.