This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 74 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 74 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The circulatory system works most closely with which other system? A) Respiratory. B) Excretory. C) Digestive. D) Nervous. Show Answer Correct Answer: A) Respiratory. 2. Hypertension with stage 4 CKD should be sequenced in the following manner: A) I10, N18.4. B) I11.0, N18.4. C) I12.9, N18.4. D) N18.4. Show Answer Correct Answer: C) I12.9, N18.4. 3. Which body structure protects the lungs from outside harm? A) Cartilage. B) Tiny Sacs. C) The Rib Cage. D) None of above. Show Answer Correct Answer: C) The Rib Cage. 4. The mitral valve is another name for the A) Aortic valve. B) Pulmonary valve. C) Tricuspid valve. D) Bicuspid valve. Show Answer Correct Answer: D) Bicuspid valve. 5. What is the respiratory system? A) The respiratory system is the system that helps circulate our blood. B) The respiratory system is the system that takes in oxygen and takes the unneeded particles and creates carbon dioxide. C) The respiratory system is a system that is similar to the circulatory system. D) The respiratory system is a system that holds the heart as an internal organ. Show Answer Correct Answer: B) The respiratory system is the system that takes in oxygen and takes the unneeded particles and creates carbon dioxide. 6. What are the 3 main components to the circulatory system? A) Blood blood vessels lungs. B) Blood blood vessels heart. C) Bloodveins lungs. D) Arteriesblood vesselslungs. Show Answer Correct Answer: B) Blood blood vessels heart. 7. Which materials are needed for respiration and are taken FROM the heart TO the cells? A) Nutrients & oxygen. B) Carbon dioxide & water. C) Oxygen & carbon dioxide. D) Carbon dioxide & nutrients. Show Answer Correct Answer: A) Nutrients & oxygen. 8. Which disorder is associated with red blood cells? A) Scurvy. B) Thrombosis. C) Haemophiliac. D) Anaemia. Show Answer Correct Answer: D) Anaemia. 9. Explain the function of red blood cells in the human circulatory system. A) Red blood cells regulate body temperature in the circulatory system. B) Red blood cells produce antibodies that destroy pathogens. C) Red blood cells mainly carry carbon dioxide around the body. D) Red blood cells mainly carry oxygen around the body. Show Answer Correct Answer: D) Red blood cells mainly carry oxygen around the body. 10. This circuit of the circulatory system provides blood flow between the heart and the lungs. A) Pulmonary circuit. B) Systemic circuit. C) Coronary circuit. D) None of above. Show Answer Correct Answer: A) Pulmonary circuit. 11. Blast A) Destroys. B) Forms. C) Build up. D) None of above. Show Answer Correct Answer: B) Forms. 12. Pulse is the alternative expansion and elastic recoil of the wall of the artery during ..... systole A) Auricular. B) Ventricular. Show Answer Correct Answer: B) Ventricular. 13. Why do capillaries have thin walls? A) They pump blood under a ton of pressure so the walls need to be thin. B) They pump blood into the heart so they need to be very thin. C) They are thin to allow materials like water, gas, and other molecules to diffuse through them for transport. D) None of above. Show Answer Correct Answer: C) They are thin to allow materials like water, gas, and other molecules to diffuse through them for transport. 14. There are how many blood types in the ABO system? A) 2. B) 3. C) 4. D) 5. Show Answer Correct Answer: C) 4. 15. Sources of energy which promote enzyme activity A) Nutrients. B) Antibodies. C) Regulatory substances. D) Blood vessels. E) Blood vessels. Show Answer Correct Answer: A) Nutrients. 16. Which molecule can be used as an immediate source of energy? A) ATP. B) ADP. C) Glucose. D) NADH. Show Answer Correct Answer: A) ATP. 17. Largest and thickest A) Arteries. B) Capillaries. C) Veins. D) None of above. Show Answer Correct Answer: A) Arteries. 18. The heart is a powerful pump that beats between: A) 100 beats per minutes. B) 30 beats per minutes. C) 60 and 100 beats per minutes. D) None of above. Show Answer Correct Answer: C) 60 and 100 beats per minutes. 19. Where exchange between blood and tissue cells occur A) ARTERIES. B) VEINS. C) CAPILLARIES. D) None of above. Show Answer Correct Answer: C) CAPILLARIES. 20. Which is an example of a single-celled organism? A) Bird. B) Cricket. C) Snake. D) Bacteria. Show Answer Correct Answer: D) Bacteria. ← 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