Human Circulatory System Quiz Quiz

10 multiple choice questions

1. Which part of the heart receives blood from the body?

A) Atria B) Ventricles C) Aorta D) Valves

2. What wall separates the left and right sides of the heart?

A) Atria B) Ventricles C) Aorta D) Septum

3. Which type of blood vessel carries blood away from the heart?

A) Vein B) Artery C) Capillary D) Lymphatic

4. What does the right side of the heart pump blood to?

A) Left atrium and left ventricle B) Right atrium and right ventricle C) Left ventricle and aorta D) Right ventricle and pulmonary artery

5. Which blood vessel carries oxygen-rich blood from the lungs to the heart?

A) Aorta B) Pulmonary vein C) Pulmonary artery D) Vena cava

6. Which part of blood carries oxygen throughout the body?

A) Glucose B) Hemoglobin C) White blood cells D) Platelets

7. Where does the pulmonary circulation carry blood to?

A) The lungs only B) The entire body except lungs C) The right side of the body D) The brain only

8. Which blood type is known as the universal donor?

A) Type A B) Type B C) Type O D) Type AB

9. What is the main function of white blood cells?

A) Carrying oxygen B) Blood clotting C) Fighting infection D) Carrying nutrients

10. What is the role of the sinoatrial (SA) node in the heart?

A) Blood filter B) Natural pacemaker C) Oxygen sensor D) Valve controller

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