This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 325 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 325 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. When blood passes through the pulmonary valve, which vessel does it enter A) Pulmonary vein. B) Aorta. C) Pulmonary artery. D) Vena cava. Show Answer Correct Answer: C) Pulmonary artery. 2. The heart is the strongest muscle in your body. How many parts is the human heart divided into? A) 4. B) 3. C) 2. D) 5. Show Answer Correct Answer: A) 4. 3. The thicker the waxy cuticle on the surface of a leaf, ..... A) The faster the rate of transpiration. B) The slower the rate of transpiration. Show Answer Correct Answer: B) The slower the rate of transpiration. 4. Veins are blood vessels containing blood going to the heart A) True. B) False. Show Answer Correct Answer: A) True. 5. Proteins are made up of: A) Carbohydrates. B) Sugars. C) Amino acids. D) Fatty acids. Show Answer Correct Answer: C) Amino acids. 6. A hollow muscular organ about the size of our fist. A) Capillaries. B) Heart. C) Blood. D) Platelets. Show Answer Correct Answer: B) Heart. 7. Small tubes that help get blood to all cells in the body A) Capillaries. B) Heart. C) Blood. D) Pump. Show Answer Correct Answer: A) Capillaries. 8. The beating sound your heart makes comes from A) Blood going to wrong direction. B) Valve closing. C) The heart skipping beats. D) Ears tricking you. Show Answer Correct Answer: B) Valve closing. 9. Which of these is the correct name for red blood cells? A) Erythrocytes. B) Leucocytes. C) Thrombocytes. D) Osteocytes. Show Answer Correct Answer: A) Erythrocytes. 10. Happens when blood vessels are blocked and cannot take blood to the heart A) Strokes. B) Heart attack. C) Arteriosclerosis. D) Caring for your circulation system. Show Answer Correct Answer: B) Heart attack. 11. Blood flow in the small blood circulation through..... A) Heart-aorta-whole body-heart. B) Heart-aorta-lungs-heart. C) Heart-whole body-lungs-heart. D) Heart-pulmonary artery-lungs-pulmonary vein-heart. Show Answer Correct Answer: D) Heart-pulmonary artery-lungs-pulmonary vein-heart. 12. What do we call the wall that separates the heart? A) Atrium. B) Ventricle. C) Septum. D) None of above. Show Answer Correct Answer: C) Septum. 13. Your blood being pumped through arteries is an example of which type of muscle movement? A) Smooth. B) Voluntary. C) Involuntary. D) Skeletal. Show Answer Correct Answer: C) Involuntary. 14. Leukaemia occurs when WHITE BLOOD cells multiply abnormally. A) True. B) False. Show Answer Correct Answer: A) True. 15. Which of the following is a universal acceptor? A) A. B) AB. C) B. D) O. Show Answer Correct Answer: B) AB. 16. What keeps blood flowing in the right direction? A) Atria. B) Chambers. C) Valves. D) Veins. Show Answer Correct Answer: C) Valves. 17. What does the Larynx hold? A) The larynx holds the whole sub system. B) The larynx is part of the plant cells. C) The larynx holds the vocal chords. D) The larynx is part of animal tissues. Show Answer Correct Answer: C) The larynx holds the vocal chords. 18. What role does your brain play in the circulation of blood throughout the body? A) It tells the body where blood is needed the most. B) It signals the heart to beat. C) It signals the lungs to enrich your blood with oxygen. D) It signals arteries & veins to open & close. Show Answer Correct Answer: B) It signals the heart to beat. 19. What is the average heartbeat of a human? A) 80-100 times per minute. B) 60-80 times per minute. C) 40-60 times per minute. D) 20-40 times per minute. Show Answer Correct Answer: A) 80-100 times per minute. 20. System that is made up of the organs in the body that help us to breathe in and out, so oxygen can be pumped through the body and carbon dioxide can be removed from the bloodstream A) Respiratory System. B) Circulatory System. Show Answer Correct Answer: A) Respiratory System. ← 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