Human Heart Quiz
A quiz about the human heart
1. What is the size of a fully grown human heart?
A. Approximately the size of a tennis ball.
B. Approximately the size of a baseball.
C. Approximately the size of a soccer ball.
D. Approximately the size of a golf ball.
2. Which chamber of the heart receives oxygenated blood from the lungs?
A. Left Atrium
B. Right Atrium
C. Left Ventricle
D. Right Ventricle
3. What is the main function of the heart?
A. Pumping oxygen-rich blood to the body
B. Pumping carbon dioxide to the lungs
C. Producing red blood cells
D. Controlling body temperature
4. Which blood vessels supply oxygen and nutrients to the heart muscle?
A. Coronary arteries
B. Pulmonary veins
C. Aorta
D. Superior vena cava
5. What is the purpose of heart valves?
A. To prevent backward flow of blood
B. To regulate the heart rate
C. To produce electrical signals
D. To store blood
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