Blood is supplied to the myocardium by
A) the coronary arteries.
B) arteries that branch from the pulmonary arteries.
C) contact with blood in the pumping chambers.
D) the coronary sinus.
E) both A and C

Coronary circulation is a part of the systemic circulatory system that is responsible for supplying oxygenated blood and draining the deoxygenated blood from the heart muscles.

In this circulatory system, the blood vessels responsible for supplying blood to the heart muscle, myocardium, are called coronary arteries. Whereas, the cardiac veins are responsible for draining away the deoxygenated blood from the heart muscles.

Blood is supplied to the myocardium by A) the coronary arteries. B) arteries that branch from the pulmonary arteries. C) contact with blood in the pumping chambers. D) the coronary sinus. E) both A and C

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Blood is supplied to the myocardium by
A) the coronary arteries.
B) arteries that branch from the pulmonary arteries.
C) contact with blood in the pumping chambers.
D) the coronary sinus.
E) both A and C