CVS Practice Test 2026 - Free CVS Practice Questions and Study Guide

Question: 1 / 400

How many papillary muscles are found in the left ventricle?

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The left ventricle contains two papillary muscles, which play a critical role in the functioning of the heart. These muscles are attached to the heart's ventricles via chordae tendineae and connect to the two mitral valve leaflets, also known as the bicuspid valve. When the left ventricle contracts, the papillary muscles contract as well, pulling the chordae tendineae and preventing the mitral valve from prolapsing (flipping back) into the left atrium. This mechanism ensures unidirectional blood flow from the left atrium to the left ventricle and prevents any backflow during contraction. Recognizing the correct number of papillary muscles is fundamental for understanding heart anatomy and function.

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