Blood vessels that branch from the aorta and carry oxygen-rich blood to the heart muscle are called what?

• A. Coronary Arteries
• B. Pulmonary Arteries
• C. Coronary Veins
• D. Aorta

Answer: (A)

Blood vessels that branch from the aorta and deliver oxygen-rich blood to the heart muscle are the coronary arteries. They originate at the base of the aorta and spread over the surface of the heart to supply the myocardium with the oxygen it needs to power each heartbeat. If this blood supply is reduced, the heart muscle can’t function properly, which is why coronary circulation is so crucial.

Pulmonary arteries, by contrast, carry blood from the right ventricle to the lungs and transport deoxygenated blood, not to the heart muscle. The aorta carries oxygen-rich blood to the rest of the body, not specifically to the heart. Coronary veins carry blood away from the heart muscle and drain into the coronary sinus, returning it to the right atrium.