The right atrioventricular artery isn't an artery that breaks off the aortic arch; it is not a straight branch of the aorta.
Arteries: Your body receives oxygen-rich blood from the heart through these robust, muscular blood veins. They don't carry a lot of blood, but they can handle a lot of stress and stress from your blood flow. Only 10% – 15% of the blood in your body at any given moment is in the arteries.
Blood channels called arteries carry oxygen-rich blood from the heart to the rest of the body. Blood arteries called veins return low-oxygen blood from the body to the heart.
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