This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 46 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 46 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the tiniest organism called? A) Single celled organism. B) Multi-celled organism. C) System. D) Tissue. Show Answer Correct Answer: A) Single celled organism. 2. True or False? Cells are VERY small A) True. B) False. Show Answer Correct Answer: A) True. 3. What is a balanced diet A) A diet Which contains all nutrients in Required amount. B) Any Food we eat. C) To lose balance after eating food. D) None of above. Show Answer Correct Answer: A) A diet Which contains all nutrients in Required amount. 4. Deoxygenated blood flows from body parts to ..... of the heart. A) Left atrium. B) Right atrium. C) Left ventricle. D) Right ventricle. Show Answer Correct Answer: B) Right atrium. 5. Hypertension is a disorder in which A) Blood pressure is consistently lower than normal. B) Blood pressure is consistentley higher than normal. C) Fatty deposits build up on artery walls. D) Some of the heart muscle dies. Show Answer Correct Answer: B) Blood pressure is consistentley higher than normal. 6. Once the blood circulates through the upper part of the body, it then goes to the ..... part of the body. A) Upper. B) Lower. Show Answer Correct Answer: B) Lower. 7. The period right after strenuous activity or exercise when your heart rate is slowing back to normal is sometimes called the ..... period. A) Warm up. B) Recovery. Show Answer Correct Answer: B) Recovery. 8. Structure(s) in heart that keep the blood flowing in one direction. A) Valve(s). B) Seven(s). C) Chamber(s). D) Bronchiole(s). Show Answer Correct Answer: A) Valve(s). 9. Minute tubes that branches out from the left and right bronchus. A) Bronchi. B) Bronchioles. C) Alveoli. D) Capillaries. Show Answer Correct Answer: B) Bronchioles. 10. What is the minimum interval permitted between blood donations? A) 45 days. B) 54 days. C) 56 days. D) 65 days. Show Answer Correct Answer: C) 56 days. 11. When blood flows into the right atrium from the body, it contains A) Little oxygen and a lot of carbon dioxide. B) A lot of oxygen and little carbon dioxide. C) A lot of both oxygen and carbon dioxide. D) Little of either oxygen or carbon dioxide. Show Answer Correct Answer: A) Little oxygen and a lot of carbon dioxide. 12. Each of the four iron atoms in one molecule of hemoglobin can combine loosely with A) One atom oxygen. B) One molecule of oxygen. C) Two molecule of oxygen. D) Four molecules of oxygen. Show Answer Correct Answer: D) Four molecules of oxygen. 13. The SA node(pacemaker) Is locted in the A) Right Ventricle. B) Between the atria & ventricles. C) Right atrium. D) Left atrium. Show Answer Correct Answer: C) Right atrium. 14. Deformed, crescent-shaped RBC's rupture easily causing blockages in small vessels and pain; reduced oxygen content in blood A) Leukocytosis. B) Leveling. C) Polycythemia. D) Sickle cell anemia. Show Answer Correct Answer: D) Sickle cell anemia. 15. The blood vessels that transport oxygenated blood to and from the heart muscles itself is called the A) Superior vena cava. B) Inferior vena cava. C) Coronary arteries. D) Aorta. Show Answer Correct Answer: C) Coronary arteries. 16. What is the term used for many cells working together? A) Organ. B) Nutrients. C) Plasma. D) Tissue. Show Answer Correct Answer: D) Tissue. 17. Which of the following is correct of microcirculation? A) Blood travels through venules, then capillaries, then veins. B) Blood travels through arterioles, then capillaries, then venules. C) Blood travels from arteries into capillaries into arterioles. D) Blood travels from veins into capillaries into venules. Show Answer Correct Answer: B) Blood travels through arterioles, then capillaries, then venules. 18. Arrange the following types of blood vessels in the correct order, when blood flows to the body from the heart and back to the heart again. A. other veins; B. venules; C. capillaries; D. arterioles; E. other arteries. F. vena cava; G. aorta A) G-E-D-C-B-A-F. B) F-A-B-C-D-G-E. C) C E-D-C-F-A-B-G. D) D G-D-C-F-A-B-E. Show Answer Correct Answer: A) G-E-D-C-B-A-F. 19. What part of blood is the liquid part made primary of water? A) Red Blood Cells. B) White Blood Cells. C) Platelets. D) Plasma. Show Answer Correct Answer: D) Plasma. 20. The nose ..... A) Warms the air and the little hairs clean it. B) Exchanges oxygen and carbon dioxide. C) Pumps the blood. D) None of above. Show Answer Correct Answer: A) Warms the air and the little hairs clean it. ← 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