This quiz works best with JavaScript enabled. Home > Science > 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 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 9Circulatory System Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books