This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 78 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 78 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Caused by the closure of the semilunar valves A) Lub. B) Dub. C) Korotkoff noise. D) None of above. Show Answer Correct Answer: B) Dub. 2. This type of cell fights off infection and kills old or damaged cells A) Red blood cell. B) White blood cell. C) Platelets. D) Plasma. Show Answer Correct Answer: B) White blood cell. 3. Serum is different from Plasma in what ways? A) Plasma has blood cells. Serum does not. B) Plasma contains fibrinogenSerum does not. C) Plasma has fewer antibodies than serum. D) None of above. Show Answer Correct Answer: B) Plasma contains fibrinogenSerum does not. 4. These blood vessels move the blood AWAY from the heart to other parts of the body: A) Veins. B) Arteries. C) Capillaries. D) White blood cells. Show Answer Correct Answer: B) Arteries. 5. The circulatory system includes the ....., ..... and ..... A) Blood, blood vessels, kidney. B) Size of the heart. C) Blood, blood vessels, heart. D) None of above. Show Answer Correct Answer: C) Blood, blood vessels, heart. 6. A blood vessel that carries blood from the heart to the body A) Artery. B) Vein. C) Capillary. D) Submarine. Show Answer Correct Answer: A) Artery. 7. The tiny sacs of lung tissue specifically for the movement of gases between air and blood are A) Arterioles. B) Amino acids. C) Arteries. D) Air sacs. Show Answer Correct Answer: D) Air sacs. 8. What part of the circulatory system is like high-speed highways for red blood cells? A) Veins. B) Capillaries. C) Arteries. D) Heart chambers. Show Answer Correct Answer: C) Arteries. 9. There are ..... valves in human heart. A) 4. B) 3. C) 2. D) 5. Show Answer Correct Answer: A) 4. 10. Galen believed that the spirited soul served what purpose? A) High level cognitive functioning. B) Growing and emotions. C) Living forces like blood. D) None of these. Show Answer Correct Answer: B) Growing and emotions. 11. Compared to red blood cells, white blood cells are: A) Smaller and more common. B) Bigger and more common. C) Smaller and less common. D) Bigger and much less common. Show Answer Correct Answer: D) Bigger and much less common. 12. Veins move blood ..... the heart. A) To. B) Away from. C) For. D) With. Show Answer Correct Answer: A) To. 13. ..... occurs when the ventricles relax and pressure decreases A) Systolic pressure. B) Diastolic pressure. C) Heart attack. D) Heart murmurs. E) Angina pectoris. Show Answer Correct Answer: B) Diastolic pressure. 14. The ..... is an important organ, the engine of the circulatory sistem, and a muscle that constantly works. A) LUNGS. B) VEINS. C) CAPILARIES. D) HEART. Show Answer Correct Answer: D) HEART. 15. What contains hemoglobin, which oxygen is carried in cells and removes carbon dioxide? A) Bryce. B) Red blood cells. C) Tissues. D) Blood. Show Answer Correct Answer: B) Red blood cells. 16. These cells, in the blood, carry oxygen and give the blood its color. A) White blood cells. B) Plasma. C) Platelets. D) Red blood cells. Show Answer Correct Answer: D) Red blood cells. 17. Which of the following factors decreases blood flow? A) An increase in overall blood volume. B) An increase in blood pressure. C) A decrease in the radius of a blood vessel. D) A decrease in blood viscosity. Show Answer Correct Answer: C) A decrease in the radius of a blood vessel. 18. Which of the following is a synonym for the circulatory system? A) Respiratory system. B) Endocrine system. C) Integumentary system. D) Cardiovascular system. Show Answer Correct Answer: D) Cardiovascular system. 19. The contraction or squeezing of the heart is called ..... * A) Diastole. B) Bradycardia. C) Systole. D) Tachycardia. Show Answer Correct Answer: C) Systole. 20. The largest artery in the body. A) Arterioles. B) Capillaries. C) Aorta. D) None of above. Show Answer Correct Answer: C) Aorta. ← 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