This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 523 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 523 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which chamber of the heart has the thickest wall? A) Right atrium. B) Right ventricle. C) Left atrium. D) Left ventricle. Show Answer Correct Answer: D) Left ventricle. 2. What is the name of the tiny blood vessels that connect the arteries and the veins? A) Caterpillars. B) Caps. C) Capillaries. D) Catteries. Show Answer Correct Answer: C) Capillaries. 3. The heart is about the size of your fist. A) True. B) False. Show Answer Correct Answer: A) True. 4. Which word is not used in the Flora and Fauna article in the blood movie A) Blood borne pathogen. B) Vasodilator. C) Anticoagulant. D) Clot. Show Answer Correct Answer: A) Blood borne pathogen. 5. I am just a cell fragment (or piece) used to attach to protein in the skin A) White blood cells. B) Red blood cells. C) Plasma. D) Platelets. Show Answer Correct Answer: D) Platelets. 6. What blood vessel is the site of oxygen, carbon dioxide and nutrient exchange? A) Artery. B) Capillary. C) Vein. D) None of above. Show Answer Correct Answer: B) Capillary. 7. Which of these is NOT a way we orient the heart in the dissection lab? A) Coronary artery runs diagonally on the ventral surface. B) Apex is at the top of the heart. C) Auricle "flaps" fold forward. D) Right side is on your left. Show Answer Correct Answer: B) Apex is at the top of the heart. 8. Surges of blood through the arteries in those areas that you can feel on your wrist or on the side of your neck A) Pulse. B) Venules. C) Veins. D) Aorta. Show Answer Correct Answer: A) Pulse. 9. When a valve or aorta is narrowed, limiting blood flow A) Blood Clot. B) SADS/SIDS. C) Aneurysm. D) Atrial Septal Defect. E) Aortic Stenosis. Show Answer Correct Answer: E) Aortic Stenosis. 10. What is the primary role of capillaries in the circulatory system? A) To pump blood to the heart. B) To carry blood at low pressure. C) To allow exchange of nutrients, gases, and wastes between blood and cells. D) To store blood. Show Answer Correct Answer: C) To allow exchange of nutrients, gases, and wastes between blood and cells. 11. John has type A blood. John is going to have surgery and doctors need blood donated just i case something goes wrong, however, there is a shortage of blood donations. Can his sister with type O be a donor? A) Yes, type O is the universal donor. B) No, their blood types are not compatible. Show Answer Correct Answer: A) Yes, type O is the universal donor. 12. These carry blood to the heart: A) Arteries. B) Veins. C) Capillaries. D) Arterioles. Show Answer Correct Answer: B) Veins. 13. The tiny, thin, hair like tubes in the lungs are A) The trachea. B) The bronchi. C) The bronchioles. D) The alveoli. Show Answer Correct Answer: C) The bronchioles. 14. What is the muscular wall that separates the right side of the heart from the left side of the heart? A) Aorta. B) Vena cava. C) Septum. D) None of above. Show Answer Correct Answer: C) Septum. 15. Which organ is the central pump of the circulatory system? A) Lungs. B) Heart. C) Liver. D) Kidneys. Show Answer Correct Answer: B) Heart. 16. The chamber found in the top section of the heart is called the ..... A) Atria. B) Ventricle. C) Chambers. D) Veins. Show Answer Correct Answer: A) Atria. 17. Stress increases the risk of heart disease by A) Increasing the risk of type 2 diabetes. B) Causing plaque to form in the arteries. C) Strengthening the heart. D) Increasing blood pressure. Show Answer Correct Answer: D) Increasing blood pressure. 18. What part of the blood helps us to fight disease? A) Red blood cell. B) White blood cell. C) Platelets. D) Plasma. Show Answer Correct Answer: B) White blood cell. 19. The purkinjie fibers provide electrical stimulation for: A) Atrium. B) Mitral valve. C) Ventricles. D) Bundle of His. Show Answer Correct Answer: C) Ventricles. 20. (Page 19) True or False, capillary walls are huge! A) True. B) False. Show Answer Correct Answer: B) False. ← 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