If the right marginal artery is blocked, which chamber is most at risk for reduced perfusion?

Prepare for the NCLEX Cardiovascular System Test! Access multiple choice questions with explanations and hints. Study effectively to ensure success on your exam day.

Multiple Choice

If the right marginal artery is blocked, which chamber is most at risk for reduced perfusion?

Explanation:
The right marginal artery runs along the acute margin of the right ventricle and primarily supplies the right ventricle with blood. If this artery becomes blocked, perfusion to the right ventricle is most compromised, leading to ischemia of that chamber. The left ventricle gets most of its blood from the left coronary arteries, and the atria receive blood from various branches of the right and left coronaries, but the right marginal artery is specifically tied to the right ventricle. So the chamber at greatest risk is the right ventricle.

The right marginal artery runs along the acute margin of the right ventricle and primarily supplies the right ventricle with blood. If this artery becomes blocked, perfusion to the right ventricle is most compromised, leading to ischemia of that chamber. The left ventricle gets most of its blood from the left coronary arteries, and the atria receive blood from various branches of the right and left coronaries, but the right marginal artery is specifically tied to the right ventricle. So the chamber at greatest risk is the right ventricle.

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