Which organ pumps blood?

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Multiple Choice

Which organ pumps blood?

Explanation:
The heart is the organ that pumps blood. It’s a muscular pump that contracts in a regular rhythm to push blood through the circulatory system. When it contracts, the left side sends oxygen-rich blood out to the body, while the right side pushes blood to the lungs to pick up oxygen. This creates two connected loops—the systemic circuit to body tissues and the pulmonary circuit to the lungs—keeping blood moving through arteries, capillaries, and veins. The lungs are essential for exchanging oxygen and carbon dioxide but do not drive blood flow themselves. The brain controls many activities but doesn’t pump blood, and the stomach handles digestion.

The heart is the organ that pumps blood. It’s a muscular pump that contracts in a regular rhythm to push blood through the circulatory system. When it contracts, the left side sends oxygen-rich blood out to the body, while the right side pushes blood to the lungs to pick up oxygen. This creates two connected loops—the systemic circuit to body tissues and the pulmonary circuit to the lungs—keeping blood moving through arteries, capillaries, and veins. The lungs are essential for exchanging oxygen and carbon dioxide but do not drive blood flow themselves. The brain controls many activities but doesn’t pump blood, and the stomach handles digestion.

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