This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 156 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 156 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The yellow liquid part of blood is called ..... A) Red blood cells. B) Plasma. C) White blood cells. D) Platelets. Show Answer Correct Answer: B) Plasma. 2. Which blood vessel has a one-cell thick wall to allow exchange of substances? A) Artery. B) Vein. C) None of the above. D) Capillary. Show Answer Correct Answer: D) Capillary. 3. How many types of blood vessels are there? A) 2. B) 4. C) 3. D) 6. Show Answer Correct Answer: C) 3. 4. The molecule that allows red blood cells to carry oxygen A) Arteries. B) Veins. C) Hemoglobin. D) Capillaries. Show Answer Correct Answer: C) Hemoglobin. 5. Where does gas exchange occur in the respiratory system? A) Bronchi. B) Esophagus. C) Larynx. D) Alveoli. Show Answer Correct Answer: D) Alveoli. 6. The heart is not a muscle. A) True. B) False. Show Answer Correct Answer: B) False. 7. Which system controls voluntary and involuntary movement? A) Muscular. B) Skeletal. C) Immune. D) Excretory. Show Answer Correct Answer: A) Muscular. 8. Which blood vessel would have the highest blood pressure? A) Vein to the right atrium (vena cava). B) Aorta. C) Small veins. D) Capillaries. Show Answer Correct Answer: B) Aorta. 9. Supplies blood to all body cells and carries away waste. A) Systemic circulation. B) Coronary circulation. C) Pulmonary circulation. D) None of above. Show Answer Correct Answer: A) Systemic circulation. 10. Blood vessels (outside the heart) that contain valves to prevent blood from flowing backwards A) Veins. B) Arteries. C) Capillaries. D) Synapses. Show Answer Correct Answer: A) Veins. 11. Which 2 chambers of the heard contain oxygen-rich blood? A) Left Atrium and Left Ventricle. B) Right Atrium and Right Ventricle. Show Answer Correct Answer: A) Left Atrium and Left Ventricle. 12. What is a pacemaker? A) Electronic device used to help the heart beat regularly. B) To help kidneys filtrate blood. C) To measure your blood pressure. D) None of above. Show Answer Correct Answer: A) Electronic device used to help the heart beat regularly. 13. How many chambers does a bird heart have? A) 2. B) 4. C) 1. D) 6. Show Answer Correct Answer: B) 4. 14. Abnormally increased number of RBCs is called Erythropenia and abnormally decreased number of RBCs is called Polycythaemia. True or False? A) True. B) False. Show Answer Correct Answer: B) False. 15. One complete contraction and relaxation of the heart i.e. complete systole(contraction of ventricles) and diastole(relaxation of ventricles) is A) Pulse rate. B) Heart beat. C) Heart rate. D) Blood pressure. Show Answer Correct Answer: B) Heart beat. 16. In the human body, our ..... system breaks food down into tiny glucose molecules. A) Digestive. B) Respiratory. C) Circulatory. D) Nervous. Show Answer Correct Answer: A) Digestive. 17. What is the name of the system in your body which includes the heart, veins, arteries and capillaries? A) Nervous system. B) Circulatory system. C) Digestive system. D) None of above. Show Answer Correct Answer: B) Circulatory system. 18. In which blood vessels the flow of blood is at low pressure? A) Arteries. B) Veins. C) Capillary. D) Windpipe. Show Answer Correct Answer: B) Veins. 19. Your heart pumps blood from your heart, throughout your entire body through little tubes called ..... A) Veins. B) Arteries. C) Hoses. D) None of above. Show Answer Correct Answer: B) Arteries. 20. In the lungs, the blood gets oxygen and gets rid of carbon dioxide A) True. B) False. Show Answer Correct Answer: A) True. ← 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