This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 426 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 426 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which blood vessels carry blood away from the heart at a high pressure? A) Arteries. B) Veins. C) Arterioles. D) Capillaries. Show Answer Correct Answer: A) Arteries. 2. This is not a cell, but the fluid that blood cells are carried in. A) Red blood. B) White blood. C) Plasma. D) Platelets. Show Answer Correct Answer: C) Plasma. 3. As capillaries leave each organ, they join to make ..... A) Arteries. B) Capillaries. C) Vessels. D) Veins. Show Answer Correct Answer: D) Veins. 4. Which list is in correct order from most simple to most complex? A) Cell, organ, tissue, organism, organ system. B) Organism, organ system, organ, tissue, cell. C) Cell, tissue, organ, organ system, organism. D) Organism, organ system, tissue, organ, cell. Show Answer Correct Answer: C) Cell, tissue, organ, organ system, organism. 5. Liquid part of the cell A) Platelets. B) Capillaries. C) Plasma. D) Red Blood Cells. Show Answer Correct Answer: C) Plasma. 6. The part of the blood that fights off harmful bacteria and viruses is called ..... A) Red blood cells. B) White blood cells. C) Platelets. D) Plasma. Show Answer Correct Answer: B) White blood cells. 7. Oxygenated blood will flow from the left atrium into the A) Aorta. B) Left ventricle. C) Right atrium. D) Right ventricle. Show Answer Correct Answer: B) Left ventricle. 8. When a small blood vessel in your hand is cut open, which plays an active defense against possible diseases? A) Plasma. B) Platelets. C) Red blood cells. D) White blood cells. Show Answer Correct Answer: D) White blood cells. 9. What is the main role of the heart in the circulatory system? A) To ensure blood circulation. B) To deliver oxygen to cells. C) To filter waste from the blood. D) To produce red blood cells. Show Answer Correct Answer: A) To ensure blood circulation. 10. What is located in the larynx? A) The larynx holds the whole respitory system. B) The larynx holds the trachea. C) The larynx holds the vocal chords. D) The larynx hold the wind pipe. Show Answer Correct Answer: C) The larynx holds the vocal chords. 11. What are the steps of the digetive process? A) Digestion in the small intestine, chewing, in the stomach, absorption and waste elimination. B) Chewing, digestion in the stomach, digestion in the small intestine, absorption and waste elimination. C) Chewing, digestion in the stomach, waste elimination, absoption and digestion in the small intestine. D) None of above. Show Answer Correct Answer: B) Chewing, digestion in the stomach, digestion in the small intestine, absorption and waste elimination. 12. Which blood component is responsible for the clotting of your blood to prevent bleeding? A) Platelets. B) Plasma. C) White Blood Cells. D) Red Blood Cells. Show Answer Correct Answer: A) Platelets. 13. How do white blood cells compare to red blood cells? A) WBCs contain more oxygen than RBCs. B) There are more WBCs than RBCs. C) WBCs are smaller than RBCs. D) WBCs are bigger than RBCs. Show Answer Correct Answer: D) WBCs are bigger than RBCs. 14. What can happen if there is an atrial septal defect in the heart? A) Increased heart rate. B) Oxygen-rich blood mixes with oxygen-poor blood. C) Decreased blood pressure. D) Improved blood circulation. Show Answer Correct Answer: B) Oxygen-rich blood mixes with oxygen-poor blood. 15. Third part of Cardiac Conduction System:This structures branches down from septum and out towards each ventricle. They *relay* the signal to the Purkinje fibers. A) Atrioventricular (AV) node. B) Sinoatrial (SA) Node. C) Bundle of His. D) Purkinje fibers. Show Answer Correct Answer: C) Bundle of His. 16. Which of the following componet of blood cells are larger? A) RBC. B) WBC. Show Answer Correct Answer: B) WBC. 17. The drawing in of breath; inhalation. A) Inspiration. B) Expiration. Show Answer Correct Answer: A) Inspiration. 18. The correct order of the layers of the heart from outer to inner side is? A) Epicardium-myocardium-endocardium. B) Endocardium-myocardium-pericardium. C) Myocardium-epicardium-endocardium. D) Epicardium-endocardium-myocardium. Show Answer Correct Answer: A) Epicardium-myocardium-endocardium. 19. What is the largest blood vessel in the body? A) Septum. B) Left atrium. C) Aorta. D) None of above. Show Answer Correct Answer: C) Aorta. 20. Humans have a ..... circulatory system, meaning that blood is pumped through a series of veins and arteries. A) Open. B) Closed. C) Feedback. D) Circular. Show Answer Correct Answer: B) Closed. ← 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