Which vessels supply blood to the heart muscle?

• A. Pulmonary arteries
• B. Carotid arteries
• C. Coronary arteries
• D. Femoral arteries

Answer: (C)

The heart muscle relies on its own dedicated blood supply to receive oxygen and nutrients, allowing it to beat reliably. This supply comes from the coronary arteries, which branch off the aorta and encircle the heart, delivering oxygen-rich blood directly to the myocardial tissue.

This is the best answer because the coronary arteries specifically nourish the heart muscle itself, supporting its continuous contraction and overall function.

Pulmonary arteries, in contrast, carry deoxygenated blood from the heart to the lungs for gas exchange. Carotid arteries feed the brain and face, while femoral arteries deliver blood to the legs. None of these pathways supply the heart muscle directly.