This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 254 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 254 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. .....% Of your body is blood A) 20. B) 14. C) 8. D) 9. E) 12. Show Answer Correct Answer: C) 8. 2. What helps blood clot A) RBC. B) WBC. C) Plasma. D) Platelets. Show Answer Correct Answer: D) Platelets. 3. The relaxation phase of cardiac cycle is A) Systole. B) Diastole. C) Xylem. D) Folem. Show Answer Correct Answer: B) Diastole. 4. Arteries branch out into smaller network of blood called veins A) True. B) False. Show Answer Correct Answer: B) False. 5. Where food enters right AFTER the esophagus and is broken down even more using chemical digestion. A) Small Intestine. B) Large Intestine. C) Stomach. D) None of above. Show Answer Correct Answer: C) Stomach. 6. The following statements give the functions of the lungs, except A) The lungs add oxygen to the blood. B) The lungs contract or relax during breathing. C) The lungs remove carbon dioxide from the body. D) The lungs control the respiratory system that helps make breathing possible. Show Answer Correct Answer: A) The lungs add oxygen to the blood. 7. What is tube that is also known as your wind pipe? A) Esophagus. B) Bronchi. C) Trachea. D) Alveoli. Show Answer Correct Answer: C) Trachea. 8. Largest artery in the body taking oxygenated blood to the body from the lower left chamber A) Pulmonary arteries. B) Radial artery. C) Aorta. D) Femoral artery. Show Answer Correct Answer: C) Aorta. 9. The function of ..... is to distribute nutrients and to clot blood. A) Blood plasma. B) Blood cells. C) Platelet. D) All three are correct. Show Answer Correct Answer: A) Blood plasma. 10. Which is a part of Circulatory System? A) Heart. B) Brain. C) Skin. D) Intestines. Show Answer Correct Answer: A) Heart. 11. What makes the circulatory system A) Heart, blood, and blood vessels. B) Blood, body, veins. C) Heart and blood only. D) Blood vessels. Show Answer Correct Answer: A) Heart, blood, and blood vessels. 12. What are two upper chambers of the heart that receive blood from the veins? A) Artery. B) Aorta. C) Atrium. D) None of the above. Show Answer Correct Answer: C) Atrium. 13. ..... from your body flows into your heart through the ..... A) Deoxygenated blood, vena cava. B) Deoxygenated blood, aorta. C) Deoxygenated blood, pulmonary artery. D) Deoxygenated blood, pulmonary vein. Show Answer Correct Answer: A) Deoxygenated blood, vena cava. 14. Which of the four is an environmental effect on the heart A) Rest. B) Eating. C) Exercise/Action. D) None of above. Show Answer Correct Answer: C) Exercise/Action. 15. Which is incorrect regarding the human circulatory system? A) Blood from the lungs carries oxygen to the heart muscle. It must pass through the tricuspid and semilunar valves in the heart. B) Blood pressure in the pulmonary artery is higher than in the pulmonary vein. C) Heart rate Can be measured by the heartbeat. D) If the coronary artery becomes narrow or stiff, it can cause the heart muscle to die. Show Answer Correct Answer: A) Blood from the lungs carries oxygen to the heart muscle. It must pass through the tricuspid and semilunar valves in the heart. 16. ONE-WAY VALVESONE-WAY VALVES A) BLOOD. B) VEIN. C) HEART. D) CAPILLARY. Show Answer Correct Answer: C) HEART. 17. What role does the circulatory system provide to the digestive system? A) It transports nutrients to cells. B) It releases waste into the blood. C) It moves food through the intestines. D) It transports food particles to the muscles. Show Answer Correct Answer: A) It transports nutrients to cells. 18. What type of circuit is used in your house? A) Light Circuits. B) The best circuits. C) Series Circuits. D) Parallel Circuits. Show Answer Correct Answer: D) Parallel Circuits. 19. More active organisms need a enclosed circualtory system because ..... A) They need to get CO2 in and O2 out quickly. B) Becuse of there LSA:VR. C) They have a large surface are to volume ratio. D) They need to get more oxygen in and carbon dioxide out. Show Answer Correct Answer: D) They need to get more oxygen in and carbon dioxide out. 20. Which artery carries DEOXYGENATED blood? A) Renal. B) Femoral. C) Brachial. D) Carotid. E) Pulmonary. Show Answer Correct Answer: E) Pulmonary. ← 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