The Marginal Branch and Posterior Interventricular Branch are Branches of The

Question

The marginal branch and posterior interventricular branch are branches of the
A) right coronary artery.
B) left coronary artery.
C) circumflex artery.
D) coronary sinus.
E) aorta.

Accepted Answer

The marginal branch and the posterior interventricular branch are both branches of the right coronary artery, which supplies blood to the right atrium, right ventricle, and conducting system of the heart. The left coronary artery, on the other hand, branches into the left anterior descending artery and the circumflex artery, which supply blood to the left atrium and ventricle. The coronary sinus drains blood from the heart, and the aorta is the major vessel that carries oxygenated blood to the rest of the body.