Question

1. the function of coronary circulation is to: a. regulate the cardiac cycle b. deliver oxygenated blood from the lungs into systemic circulation c. supply cardiac muscle with oxygenated blood and drain deoxygenated blood from it d. drain excess blood from the ventricles

Explanation:

Coronary circulation specifically serves the heart muscle. It brings oxygen - rich blood to the cardiac muscle and takes away deoxygenated blood. It is not for regulating the cardiac cycle, delivering blood from lungs to systemic circulation, or draining excess blood from ventricles.

Answer:

C. Supply cardiac muscle with oxygenated blood and drain deoxygenated blood from it