This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 495 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 495 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What type(s) of blood can a person with O+ RECEIVE? A) O+ and O-. B) O+, only. C) O-, only. D) O+, A+, B+, AB+. Show Answer Correct Answer: A) O+ and O-. 2. What ensures the single directional flow of blood through theheart? A) Constant pressure generated by the heart contractions. B) Valves within the heart that prevent backflow of blood. C) Squeezing action of smooth muscle tissue in arterial walls. D) Continuous osmotic outflow of plasma from capillaries. Show Answer Correct Answer: B) Valves within the heart that prevent backflow of blood. 3. What is the correct property of a vein? A) Very stretchy. B) Muscular walls. C) Thick walls. D) Cope with high blood pressure. Show Answer Correct Answer: A) Very stretchy. 4. The vessels that are specialized to carry blood away from the heart A) Arteries. B) Veins. C) Capillaries. D) Venules. Show Answer Correct Answer: A) Arteries. 5. Which is the thinnest blood vessel.? A) Arteries. B) Veins. C) Capillaries. D) Heart. Show Answer Correct Answer: C) Capillaries. 6. Which node delays the ventricles from firing before fully filled? A) OF. B) On. Show Answer Correct Answer: A) OF. 7. A chemical tha is pH indicator that can change colors to indicate that Carbon Dioxide is present? A) Lugol Solution. B) Benedicts Solution. C) Bromothymol Blue Solution. D) Biuret Solution. Show Answer Correct Answer: C) Bromothymol Blue Solution. 8. When RBC leave the heart, what blood vessels do they travel on to get to various cells? A) Arteries. B) Aorta. C) Veins. D) Ventricles. Show Answer Correct Answer: A) Arteries. 9. What part of your blood picks up oxygen and drops off carbon dioxide? A) Plasma. B) Platelet. C) Red blood cells. D) None of above. Show Answer Correct Answer: C) Red blood cells. 10. Heart is enclosed in a double membrane protective layer called ..... A) Pericardial fluid. B) Pericardium. C) Septum. D) Visceral layer. Show Answer Correct Answer: B) Pericardium. 11. Which heart chambers has the thickest muscle wall? A) Right atrium. B) Left atrium. C) Right ventricle. D) Left ventricle. Show Answer Correct Answer: D) Left ventricle. 12. The circulatory system plays a role in the regulation of body temperature A) True. B) False. Show Answer Correct Answer: A) True. 13. How long would all the arteries and veins measure if they were placed in a single file? A) 96, 000 kilometers. B) 10, 000 kilometers. C) 50, 000 kilometers. D) 200, 000 kilometers. Show Answer Correct Answer: A) 96, 000 kilometers. 14. Membrane that surrounds the heart A) Pleural membrane. B) Pericardium. C) Alveolus. D) Septum. Show Answer Correct Answer: B) Pericardium. 15. Oxygenated and deoxygenated blood are kept separate until they meet in the heart A) True. B) False. Show Answer Correct Answer: A) True. 16. Which blood vessel returns blood back to the heart? A) Artery. B) Spinal cord. C) Veins. D) Capillary. Show Answer Correct Answer: C) Veins. 17. Are there tiny '' doors" that open and close as blood is pumped through the heart? A) No. B) Yes. Show Answer Correct Answer: B) Yes. 18. (a) circulation sends blood from the heart to the lungs. A) A Pulmonary. B) Systemic. C) Capillary. D) None of above. Show Answer Correct Answer: A) A Pulmonary. 19. ..... FIGHTS WITH GERMS AND INFECTIONS. A) RBCs. B) WBCs. C) PLATELETS. D) ARTERY. Show Answer Correct Answer: B) WBCs. 20. When the heart cannot pump enough blood to meet the body's circulation needs, it is called ..... A) Heart attack. B) Stroke. C) Artherosclerosis. D) Heart failure. Show Answer Correct Answer: D) Heart failure. ← 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