This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 344 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 344 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following blood vessels/heart chambers contains blood that has more oxygen? A) Superior Vena Cava. B) Inferior Vena Cava. C) Pulmonary Artery. D) Right Ventricle. E) Aorta. Show Answer Correct Answer: E) Aorta. 2. Valves are present in A) A-Veins. B) B-Heart. C) Both A & B. D) None of them. Show Answer Correct Answer: C) Both A & B. 3. Why is yeast used in bread-making? A) A Aerobic respiration produces alcohol. B) B Aerobic respiration produces carbon dioxide. C) C Anaerobic respiration produces alcohol. D) D Anaerobic respiration produces carbon dioxide. Show Answer Correct Answer: D) D Anaerobic respiration produces carbon dioxide. 4. Name that System:arteries A) Respiratory. B) Circulatory. C) Digestive. D) More than one. Show Answer Correct Answer: B) Circulatory. 5. A Double Circulatory System is a double loop in which blood flows: A) Heart $\rightarrow$; Lungs $\rightarrow$ Heart $\rightarrow$; Body $\rightarrow$; Heart. B) Lungs $\rightarrow$ Heart $\rightarrow$; Body $\rightarrow$; Heart. C) Heart $\rightarrow$; Lungs $\rightarrow$ ; Body $\rightarrow$; Heart. D) Heart $\rightarrow$; Lungs $\rightarrow$ Heart $\rightarrow$; Body. Show Answer Correct Answer: A) Heart $\rightarrow$; Lungs $\rightarrow$ Heart $\rightarrow$; Body $\rightarrow$; Heart. 6. What layer of the heart muscle is most superficial? A) Epicardium. B) Myocardium. C) Endocardium. D) Pericardium. Show Answer Correct Answer: D) Pericardium. 7. A scientist pumps water to the vena cava of a dissected pig heart. Where will the water go? A) Vena cava. B) Aorta. C) Pulmonary artery. D) Pulmonary vein. Show Answer Correct Answer: C) Pulmonary artery. 8. The pressure exerted by roots towards xylem is called..... A) Root hair pressure. B) Pressure. C) Xylem pressure. D) Root pressure. Show Answer Correct Answer: D) Root pressure. 9. Which code is assigned for unspecified Type One Acute Myocardial Infarction? A) I21.9. B) I21.3. C) Ouch. A. D) I21.4. Show Answer Correct Answer: B) I21.3. 10. Transports oxygenated blood to the body A) Aorta. B) Vena cava. Show Answer Correct Answer: A) Aorta. 11. Blood vessels that carry oxygen rich blood AWAY from the heart. A) Capillaries. B) Veins. C) Arteries. D) None of above. Show Answer Correct Answer: C) Arteries. 12. Another name for white blood cells is ..... A) Thrombocytes. B) Leukocytes. C) Erythrocyte. D) Blood plasma. Show Answer Correct Answer: B) Leukocytes. 13. What is the name of the highway through which blood flows from the heart? A) Aorta. B) Capillaries. C) Veins. D) Arteries. Show Answer Correct Answer: A) Aorta. 14. Which type of blood vessels contains valves? A) Capillaries. B) Arteries. C) Veins. D) None of above. Show Answer Correct Answer: C) Veins. 15. What is the largest vein in the body A) Vena Cava. B) Jugular. C) Pulmonary. D) Aorta. Show Answer Correct Answer: A) Vena Cava. 16. During gas exchange, oxygen travels into the bronchioles, to the alveoli. The oxygen then diffuses into the capillaries. A) True. B) False. Show Answer Correct Answer: A) True. 17. Which valve sits between the lower left chamber and large artery leading to the body A) Pulmonary. B) Mitral. C) Aortic. D) Tricuspid. Show Answer Correct Answer: C) Aortic. 18. The red color of the blood is due to the presence of the pigment Hemoglobin A) True. B) False. Show Answer Correct Answer: A) True. 19. If the environment gets cold, we will often shiver in order to: A) Keep body temperature the same as the external temperature. B) Decrease body temperature. C) Increase body temperature. D) Regulate blood pressure. Show Answer Correct Answer: C) Increase body temperature. 20. What part of the heart is a "door" that only lets blood flow in one direction? A) Atria. B) Ventricles. C) Valves. D) Arteries. Show Answer Correct Answer: C) Valves. ← 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