This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 369 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 369 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Water is carried upward in the xylem by way of the cohesive and adhesive forces of A) Capillarity. B) Transpiration pull. C) Osmosis. D) None of above. Show Answer Correct Answer: A) Capillarity. 2. Blood platelets produce ..... A) Fibrinogen. B) Thromboplastin. C) Haemoglobin. D) Calcium. Show Answer Correct Answer: B) Thromboplastin. 3. Which type of blood circulation makes all of the organs of the body supplied with blood? A) Systemic circulation. B) Pulmonary circulation. Show Answer Correct Answer: A) Systemic circulation. 4. What is the function of your heart? A) Moves the blood. B) Transports the water. C) Digests food. D) To do running. Show Answer Correct Answer: A) Moves the blood. 5. In the correct sequence of the cardiac conduction system, an impulse will travel to from the SA node to the ..... ? A) Purkinje fibers. B) AV node. C) Bundle of His. D) Right and left bundle branches. Show Answer Correct Answer: B) AV node. 6. The heart sends ..... blood to the lungs. A) Deoxygenated blood. B) White blood. C) Oxygenated blood. D) None of these. Show Answer Correct Answer: A) Deoxygenated blood. 7. A valve that is situated at the opening of the right atrium of the heart into the right ventricle and that resembles the mitral valve in structure but consists of three triangular membranous flaps. A) Mitral valve. B) Tricuspid valve. C) Pulmonary valve. D) Aortic valve. Show Answer Correct Answer: B) Tricuspid valve. 8. Have four chambered hearts and two separate circulatory loops. A) Fish. B) Reptile. C) Mammals. D) Bird. Show Answer Correct Answer: D) Bird. 9. Loose connective tissue with occasional smooth muscle cells A) Endothelium. B) Subendothelial layer. C) Internal Elastic Lamina. D) External Elastic Lamina. Show Answer Correct Answer: B) Subendothelial layer. 10. Blood that leaves the lungs is ..... A) Oxygenated. B) Deoxygenated. Show Answer Correct Answer: A) Oxygenated. 11. What happens if valves are not present in veins? A) Blood flows forward in blood vessels. B) Blood won't flows forward in blood vessels. C) Both are correct. D) Blood flows in backward direction in veins. Blood flows backward in the veins. Show Answer Correct Answer: D) Blood flows in backward direction in veins. Blood flows backward in the veins. 12. In the heart, what keeps blood from moving backwards? (think about the pumping heart lab) A) The valves. B) The atrium. C) The ventricle. D) The aorta. Show Answer Correct Answer: A) The valves. 13. Oxygenated blood In pulmonary circulation, the ..... blood is collected from the different parts of the body in the pulmonary artery. A) Oxygenated blood. B) Deoxygenated blood. C) None of the above. D) Both a & b. Show Answer Correct Answer: B) Deoxygenated blood. 14. This blood vessel carries blood from lower part of the body to the heart. A) Superior Vena Cava. B) Aorta. C) Inferior Vena Cava. D) Carotid artery. Show Answer Correct Answer: C) Inferior Vena Cava. 15. Why is a cut in an artery generally a more serious injury than a cut in a vein of the same size? A) The aorta is the largest artery. B) Oxygenated blood flows more quickly. C) Blood pressure is lower in arteries. D) Blood pressure is higher in arteries, so blood loss will happen quickly. Show Answer Correct Answer: D) Blood pressure is higher in arteries, so blood loss will happen quickly. 16. What is the part of your blood that forms clots and helps you to scab? A) Plasma. B) Platelets. C) RBCs. D) White blood cells. Show Answer Correct Answer: B) Platelets. 17. Which of the following carries blood toward the heart A) Artery. B) Ventricle. C) Atrium. D) Vein. Show Answer Correct Answer: D) Vein. 18. Blood is a fluid that distributes nutrients, oxygen, substances, and solid waste products. A) True. B) False. Show Answer Correct Answer: A) True. 19. Which chambers of the heart do RBC exit out of? A) L/R Arteries. B) L/R Atrium. C) L/R Ventricle. D) L/R Veins. Show Answer Correct Answer: C) L/R Ventricle. 20. Into which chamber of the heart do the pulmonary veins deliver blood? A) Left ventricle. B) Right atrium. C) Left atrium. D) Right ventricle. Show Answer Correct Answer: C) Left atrium. ← 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