Blood Circulation

1. What is the primary function of the circulatory system?

• Transport nutrients
• Fight infections
• Regulate body temperature
• All of the above
• None of the above

2. Which blood vessel carries blood away from the heart?

• Vein
• Artery
• Capillary
• Lymphatic vessel
• None of the above

3. What is the largest artery in the human body?

• Aorta
• Superior vena cava
• Inferior vena cava
• Pulmonary artery
• Pulmonary vein

4. Where does blood exchange oxygen and carbon dioxide?

• Lungs
• Heart
• Kidneys
• Liver
• Intestines

5. Which chamber of the heart pumps blood to the body?

• Right atrium
• Left atrium
• Right ventricle
• Left ventricle
• None of the above

6. What is the name of the valve between the left atrium and left ventricle?

• Tricuspid valve
• Bicuspid valve
• Pulmonary valve
• Aortic valve
• None of the above

7. What is the primary function of red blood cells?

• Carry oxygen
• Fight infections
• Clotting
• Transport nutrients
• None of the above

8. What is the main component of plasma?

• Red blood cells
• White blood cells
• Platelets
• Water
• Proteins

9. What is the term for the condition where blood pressure is consistently high?

• Hypertension
• Hypotension
• Anemia
• Leukemia
• Thrombosis

10. What is the process by which blood clots?

• Hemostasis
• Hemolysis
• Hemorrhage
• Hemophilia
• Hemoglobin