Which of These Statements About the Coronary Arteries is True

Question

Which of these statements about the coronary arteries is true?
A) The left coronary artery supplies the anterior wall of the heart and most of the left ventricle.
B) The right coronary artery supplies most of the right ventricle.
C) Blood flow through the coronary arteries is greatest during ventricular diastole (relaxation).
D) A heart attack occurs if a coronary artery is blocked.
E) All of these are true.

Accepted Answer

All of these statements are true. The left coronary artery supplies the anterior wall of the heart and most of the left ventricle, while the right coronary artery supplies most of the right ventricle. Blood flow through the coronary arteries is greatest during ventricular diastole (relaxation). If a coronary artery is blocked, it can lead to a heart attack.