This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 191 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 191 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The valves between the ventricles and the arteries are called: A) Atrioventricular valves. B) Mitral valves. C) Semilunar valves. D) All of them. Show Answer Correct Answer: C) Semilunar valves. 2. The average person breathes about 200 times per minute A) True. B) False. Show Answer Correct Answer: B) False. 3. What part of blood is responsible for carrying wastes, nutrients, and minerals? A) Erythrocytes. B) Leukocytes. C) Thrombocytes. D) Plasma. Show Answer Correct Answer: D) Plasma. 4. ..... blood goes to the heart in the veins. A) Deoxygenated (without oxygen). B) Oxygenated (with oxygen). Show Answer Correct Answer: A) Deoxygenated (without oxygen). 5. Which of the following are the blood vessels that helps blood flow to the heart? A) Veins. B) Arteries. C) Capillaries. D) None of above. Show Answer Correct Answer: A) Veins. 6. Blood entering the Left Ventricle is: A) Oxygenated. B) Deoxygenated. Show Answer Correct Answer: A) Oxygenated. 7. Which side of the heart has oxygen rich blood? A) Right. B) Left. Show Answer Correct Answer: B) Left. 8. The ..... has the thickest wall because it pumps blood to the ..... A) Right atrium; systemic circuit. B) Right ventricle; lungs. C) Left atrium; lungs. D) Left ventricle; systemic circuit. Show Answer Correct Answer: D) Left ventricle; systemic circuit. 9. What is an arrythmia A) Slow heart heart beat. B) Fast heart beat. C) No heart beat. D) Change in rate and rhythm of the heart. Show Answer Correct Answer: D) Change in rate and rhythm of the heart. 10. What does xylem transport? A) Water and minerals. B) Water only. C) Sugar. D) Food. Show Answer Correct Answer: A) Water and minerals. 11. Veins carry oxygen-poor (deoxygenated) blood back to the heart. A) False. B) True. Show Answer Correct Answer: B) True. 12. Which is not a part of the heart? A) Septal wall. B) Pulmonary valve. C) Coronary artery. D) Sphincter. Show Answer Correct Answer: D) Sphincter. 13. All the following are from the components of the circulatory system except ..... A) Heart. B) Blood vessels. C) Stomach. D) Blood. Show Answer Correct Answer: C) Stomach. 14. When reading blood pressure, the higher number represents ..... blood pressure. A) Systolic. B) Diastolic. C) Mitral. D) Tricuspid. Show Answer Correct Answer: A) Systolic. 15. Oxygen exchange occurs ( $O_2$ $CO_2$ A) Arteries (pulses) [6]. B) Venous Vessels (Back) [6]. C) Capillaries [5]. D) None of above. Show Answer Correct Answer: C) Capillaries [5]. 16. Which part of the blood fights off pathogens like harmful bacteria and viruses? A) Red blood cells. B) White blood cells. C) Plasma. D) Platelets. Show Answer Correct Answer: B) White blood cells. 17. What is the average resting human heart heart rate? A) 100. B) 53. C) 72. D) 88. Show Answer Correct Answer: C) 72. 18. Who could a person with type A blood safely donate blood to? A) Person with type A blood. B) Person with type B blood. C) Person with type O blood. D) Type A blood is not safe to give to any blood type. Show Answer Correct Answer: A) Person with type A blood. 19. The ..... carry blood back to the heart to pick up more oxygen from the lungs. A) Veins. B) Arteries. Show Answer Correct Answer: A) Veins. 20. When a muscle squeezes and tightens it is called a ..... A) Contraction. B) Tear. C) Fracture. D) None of above. Show Answer Correct Answer: A) Contraction. ← PreviousNext →Related QuizzesScience QuizzesCirculatory System Quiz 1Circulatory System Quiz 2Circulatory System Quiz 3Circulatory System Quiz 4Circulatory System Quiz 5Circulatory System Quiz 6Circulatory System Quiz 7Circulatory System Quiz 8Circulatory System Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books