This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 38 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 38 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What part of this circulatory system receives oxygen-rich blood from the lungs and pumps it to the left ventricle? A) Left atrium. B) Right atrium. C) Left ventricle. D) Right ventricle. Show Answer Correct Answer: A) Left atrium. 2. Movement of air in and out of the lungs A) Ventilation. B) Respiration. C) Respiratory system. D) Cellular respiration. Show Answer Correct Answer: A) Ventilation. 3. This particular blood vessel carries de-oxygenated blood from the lower half of the body to the right atrium. A) Super vena cava. B) Inferior vena cava. C) Pulmonary artery. D) Pulmonary vein. Show Answer Correct Answer: B) Inferior vena cava. 4. Capillary walls are how many cells thick? A) Two cells thick. B) Multiple cells thick. C) Single cell thick. D) No cells thick. Show Answer Correct Answer: C) Single cell thick. 5. Pulmonary vein carries A) Oxygenated blood. B) Deoxygenated blood. Show Answer Correct Answer: A) Oxygenated blood. 6. The ..... ventricle pumps blood to the lungs. A) Left. B) Right. Show Answer Correct Answer: B) Right. 7. The emptying of the atria (contraction) is controlled by the: A) Because of the difference. B) AV node. C) Purkinje fibres. D) Bundle of His. Show Answer Correct Answer: A) Because of the difference. 8. What is aerobic respiration? A) Respiration using oxygen. B) Respiration without oxygen. C) Producing energy in cells. D) None of above. Show Answer Correct Answer: A) Respiration using oxygen. 9. The oxygenated blood flows back to the heart: A) Pulmonary circulation. B) Systemic circulation. Show Answer Correct Answer: A) Pulmonary circulation. 10. Which of these is a constituent of blood? A) Sebum. B) Plasma. C) Pulmonary juices. D) Lymph. Show Answer Correct Answer: B) Plasma. 11. Lymphocytes (B and T lymphocytes) include..... A) Granulocyte leukocytes. B) Agranulocyte leukocytes. Show Answer Correct Answer: B) Agranulocyte leukocytes. 12. When blood circulates back to the heart, it has less oxygen? A) True. B) False. Show Answer Correct Answer: A) True. 13. A small blood cell that helps the blood to clot A) Platelet. B) Red blood cell. C) White blood cell. D) Hemoglobin. Show Answer Correct Answer: A) Platelet. 14. The top chambers of the heart are called: A) Atrium. B) Ventricles. Show Answer Correct Answer: A) Atrium. 15. The aorta ..... A) Carries oxygenated blood from the heart to the body. B) Carries deoxygenated blood to the heart from the body. C) Carries oxygenated blood from the heart to the lungs. D) Carries deoxygenated blood from the lungs to the heart. Show Answer Correct Answer: A) Carries oxygenated blood from the heart to the body. 16. The left side of the heart A) Receives blood from the lungs and pumps it out to the body. B) *receives blood from the body and pumps it to the lungs. Show Answer Correct Answer: A) Receives blood from the lungs and pumps it out to the body. 17. White blood cells destroy a virus ..... what kind of job is this? A) Transport. B) Protection. C) Regulation. D) None of above. Show Answer Correct Answer: B) Protection. 18. Veins always carry deoxygenated blood A) True. B) False. C) Dog Excrement. D) The Titanic. Show Answer Correct Answer: B) False. 19. A valve with 3 parts is called a A) Trivalve. B) Bicuspid valve. C) Bivalve. D) Tricuspid valve. Show Answer Correct Answer: D) Tricuspid valve. 20. Which part of blood allows blood to clot? (create scabs) A) Red blood cell. B) White blood cell. C) Plasma. D) Platelet. Show Answer Correct Answer: D) Platelet. ← 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