Which heart chamber has the greatest sternocostal projection?

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Multiple Choice

Which heart chamber has the greatest sternocostal projection?

Explanation:
The sternocostal (anterior) surface of the heart is formed mainly by the right ventricle, which lies closest to the sternum and forms the bulk of the front of the heart. The left ventricle sits more to the left and posterior, forming the left border and diaphragmatic surface. The right atrium contributes only a portion of the anterior surface near the right border, and the left atrium is largely posterior as the base. Therefore, the chamber with the greatest sternocostal projection is the right ventricle.

The sternocostal (anterior) surface of the heart is formed mainly by the right ventricle, which lies closest to the sternum and forms the bulk of the front of the heart. The left ventricle sits more to the left and posterior, forming the left border and diaphragmatic surface. The right atrium contributes only a portion of the anterior surface near the right border, and the left atrium is largely posterior as the base. Therefore, the chamber with the greatest sternocostal projection is the right ventricle.

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