The right and left coronary arteries are about equally dominant in hearts; 50% of hearts are right artery dominant and 50% of hearts are left artery dominant.

Question

Quizplus · Accepted Answer

While the majority of hearts have a dominant right coronary artery (about 85-90%), approximately 10-15% of hearts have a dominant left coronary artery. Therefore, the statement that 50% of hearts are right artery dominant and 50% are left artery dominant is false.

The Right and Left Coronary Arteries Are About Equally Dominant