How many chambers does the heart have?

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Multiple Choice

How many chambers does the heart have?

Explanation:
The heart has four chambers: two atria and two ventricles. The right atrium receives deoxygenated blood from the body, which moves to the right ventricle and is pumped to the lungs. The left atrium receives oxygenated blood from the lungs, which moves to the left ventricle and is pumped to the rest of the body. The atria act as receiving rooms, and the ventricles as pumping rooms, with a septum separating the left and right sides to keep the two circuits—pulmonary and systemic—distinct. This four-chamber setup supports efficient, one-way blood flow and proper circulation.

The heart has four chambers: two atria and two ventricles. The right atrium receives deoxygenated blood from the body, which moves to the right ventricle and is pumped to the lungs. The left atrium receives oxygenated blood from the lungs, which moves to the left ventricle and is pumped to the rest of the body. The atria act as receiving rooms, and the ventricles as pumping rooms, with a septum separating the left and right sides to keep the two circuits—pulmonary and systemic—distinct. This four-chamber setup supports efficient, one-way blood flow and proper circulation.

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