The function of the right marginal artery is to supply blood to which heart chamber?

The function of the right marginal artery is to supply blood to which heart chamber?

• A. Left atrium
• B. Right ventricle
• C. Right atrium
• D. Left ventricle

Answer: (B)

The right marginal artery is a branch of the right coronary artery that runs along the acute margin of the heart to nourish the right ventricle. Because its course and distribution are along the right ventricle’s free wall, it primarily supplies blood to the right ventricle. The left atrium and left ventricle receive most of their blood from branches of the left coronary artery, and while the right coronary system can give branches to the right atrium and nodal tissue, the right marginal artery’s specific role is to perfuse the right ventricle.

The right marginal artery is a branch of the right coronary artery that runs along the acute margin of the heart to nourish the right ventricle. Because its course and distribution are along the right ventricle’s free wall, it primarily supplies blood to the right ventricle. The left atrium and left ventricle receive most of their blood from branches of the left coronary artery, and while the right coronary system can give branches to the right atrium and nodal tissue, the right marginal artery’s specific role is to perfuse the right ventricle.