CVS Practice Test 2026 – The All-In-One Guide to Exam Success!

Question: 1 / 400

Which vessels supply blood to the anterior (lateral) papillary muscle?

Right coronary artery

Left anterior descending artery and left circumflex artery

The left anterior descending artery and the left circumflex artery are responsible for supplying blood to the anterior (lateral) papillary muscle. The anterior papillary muscles are primarily associated with the left ventricle and play a crucial role in the function of the heart's mitral valve. The left anterior descending artery, in particular, provides blood to the anterior wall of the left ventricle, including the region where the anterior papillary muscle resides. The left circumflex artery also contributes to the blood supply in this region, particularly for the lateral aspects.

Understanding the anatomy and blood supply of the heart is essential, as proper blood flow is critical for the functioning of these structures. The anterior papillary muscles are vital in stabilizing the mitral valve during ventricular contraction, preventing valve prolapse and ensuring efficient blood flow from the left atrium to the left ventricle.

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Posterior descending artery and left circumflex artery

Right and left carotid arteries

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