Which chamber pumps blood to the body through the aorta?

• A. Left Ventricle
• B. Right Ventricle
• C. Left Atrium
• D. Right Atrium

Answer: (A)

Pumping blood to the body through the aorta is done by the left ventricle. It receives oxygen-rich blood from the left atrium and contracts with enough force to push that blood into the aorta, which then distributes it to all organs. The left ventricle has a thick muscular wall to generate the high pressure needed for systemic circulation. The right ventricle sends blood to the lungs via the pulmonary artery at a lower pressure, while the atria mainly receive blood and shuttle it to the ventricles for pumping.