This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 481 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 481 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Where is heart located A) Abdomen. B) Mediastinum. C) Above the lungs. D) Below Diaphragm. Show Answer Correct Answer: B) Mediastinum. 2. Thrombocytes are ..... A) White blood cells. B) Red blood cells. C) Platelets. D) Plasma. Show Answer Correct Answer: C) Platelets. 3. The red blood cells take this waste gas away from the cells A) Carbon dioxide. B) Helium. C) Oxygen. D) Gas. Show Answer Correct Answer: A) Carbon dioxide. 4. How are vaccinations able to help us develop immunity? A) Exposure to disease creates antibodies which make us immune. B) Exposure to antibodies which makes us the disease immune to us. C) Exposure to immunity's which make us antibodies to the disease. D) None of above. Show Answer Correct Answer: A) Exposure to disease creates antibodies which make us immune. 5. Describe the septum A) Muscular wall:divides heart into right and left sides. B) Membrane (sac); covers heart; pericardial fluid between these 2 layers. C) Muscular middle layer. D) Lines inside of heart; allows smooth flow of blood. Show Answer Correct Answer: A) Muscular wall:divides heart into right and left sides. 6. What is the coordinated sequence of the heart's contractions and relaxations called? A) Coronary cycle. B) Cardiac cycle. C) Aortic cycle. D) Pulmonary cycle. Show Answer Correct Answer: B) Cardiac cycle. 7. How do we get bruises? A) Broken blood vessels. B) Bacteria. C) Sun burn. D) None of above. Show Answer Correct Answer: A) Broken blood vessels. 8. Your heart is an involuntary muscle that is always working. A) True. B) False. Show Answer Correct Answer: A) True. 9. Which part of the blood is a colorless liquid? A) Plasma. B) Platelets. C) Red blood cells. D) White blood cells. Show Answer Correct Answer: A) Plasma. 10. What is the equation for cardiac output? A) Stroke volume (SV) x Pulse Rate in one minute (PR) = Cardiac Output (CO). B) PR (pulse rate in 30 seconds) x PD (Pulse deficient) = CO (Cardiac Output). C) Stroke volume(SV) x PD (Pulse deficit) = CO (Cardiac Output). D) Force of beat x beats per minute = cardiac output. Show Answer Correct Answer: A) Stroke volume (SV) x Pulse Rate in one minute (PR) = Cardiac Output (CO). 11. Small blood vessels that exchange oxygen and carbon dioxide. A) Heart. B) Arteries. C) Veins. D) Capillaries. Show Answer Correct Answer: D) Capillaries. 12. Thin, non-muscular walls: A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: B) Veins. 13. ..... is the largest artery of our body. A) Arterioles. B) Atrium. C) Venules. D) Aorta. Show Answer Correct Answer: D) Aorta. 14. The push of blood through the blood vessels each time your heart beats. A) Pulse. B) Heartbeat. C) Heart rate. D) Blood pressure. Show Answer Correct Answer: A) Pulse. 15. Which part of the circulatory system receives oxygen-rich blood from the lungs? A) Left atrium. B) Right ventricle. C) Aorta. D) All of these. Show Answer Correct Answer: A) Left atrium. 16. What are tiny air sacs at the end of each bronchiole, where exchange of gases takes place? A) Alveoli. B) Capillaries. C) Bronchus. D) Cilia. Show Answer Correct Answer: A) Alveoli. 17. Which of the following is the smallest blood vessel? A) Venules. B) Arterioles. C) Veins. D) Capillaries. Show Answer Correct Answer: D) Capillaries. 18. From ..... fluid, cells absorb oxygen and other nutrients A) Tissue Fluid. B) Intercellular fluid. C) Interstitial fluid. D) All of the above. Show Answer Correct Answer: D) All of the above. 19. Minnie walked out from a dark cinema to the bright lobby. Which of the following happens? A) The radial muscles contract and the pupil enlarges. B) The circular muscles contract and the pupil becomes smaller. C) The circular muscles contract and the pupil enlarges. D) The radial muscles contract and the pupil becomes smaller. Show Answer Correct Answer: A) The radial muscles contract and the pupil enlarges. 20. Muscles that bend your joints work in ..... A) Pairs. B) A system. C) A trio. D) None of above. Show Answer Correct Answer: A) Pairs. ← 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