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Multiple Choice

Which chamber pumps blood into the aorta?

The left ventricle is the chamber that pumps blood into the aorta. As it contracts, blood is forced through the aortic valve into the ascending aorta, supplying the entire body with oxygenated blood. Its thick muscular wall is built to generate the high pressure needed to overcome systemic resistance and keep blood moving through the arteries. In contrast, the right ventricle sends blood to the lungs via the pulmonary artery, while the atria receive blood from the body or lungs and do not propel blood into the aorta.

The left ventricle is the chamber that pumps blood into the aorta. As it contracts, blood is forced through the aortic valve into the ascending aorta, supplying the entire body with oxygenated blood. Its thick muscular wall is built to generate the high pressure needed to overcome systemic resistance and keep blood moving through the arteries. In contrast, the right ventricle sends blood to the lungs via the pulmonary artery, while the atria receive blood from the body or lungs and do not propel blood into the aorta.