This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System โ Quiz 631 ๐ Homepage ๐ Download PDF Books ๐ Premium PDF Books Circulatory System Quiz 631 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the definition for digestion? A) Breaking down food into smaller nutrients. B) Getting rid of waste products. C) Getting food into our bodies. D) Getting nutrients into our bloodstream, so that our cells can use them. Show Answer Correct Answer: A) Breaking down food into smaller nutrients. 2. Heart contracts and expands? A) True. B) False. C) Maybe. D) None of the above. Show Answer Correct Answer: B) False. 3. These are the receiving chambers of the heart. A) Atria. B) Ventricles. C) Veins. D) Arteries. Show Answer Correct Answer: A) Atria. 4. How many white blood cells are there in a pinhead sized drop of blood? A) 5 thousand. B) 10 thousand. C) 250 thousand. D) 1 million. Show Answer Correct Answer: B) 10 thousand. 5. It regulates the body temperature and prevents pathogens from entering the body. A) Immune System. B) Integumentary System. C) Nervous System. D) Respiratory System. Show Answer Correct Answer: B) Integumentary System. 6. What 2 gases are exchanged in the alveoli? A) Oxygen and Nitrogen. B) Oxygen and Carbon Dioxide. C) Carbon Dioxide and Nitrogen. D) Carbon Dioxide and Hydrogen. Show Answer Correct Answer: B) Oxygen and Carbon Dioxide. 7. The sound "lub" executes on closing of..... in cardiac cycle process. Cardiovascular Processes When does the sound of lub occur? A) Valves between ventricles and arteries When the valves between ventricles and arteries are closed. B) Valves in veins When the valves in the veins close. C) Valves between atria and ventricles When the valves between atria and ventricles close. D) All the above เฐชเฑเฐตเฐจเฑเฐจเฑ. Show Answer Correct Answer: C) Valves between atria and ventricles When the valves between atria and ventricles close. 8. What do our arteries do? A) They transport blood away from our heart. B) They transport blood to our heart. C) They transport information away from our heart. D) They transport information to our heart. Show Answer Correct Answer: A) They transport blood away from our heart. 9. The movement of blood from the legs toward the heart is hindered by gravity. The effect of gravity is counteracted by A) Smooth muscle in the capillaries. B) Cilia lining the blood vessels. C) Valves in the veins. D) Lymph nodes near major vessels. Show Answer Correct Answer: C) Valves in the veins. 10. This group of cells regulates the heartbeat. A) Pacemaker. B) Septum. C) Lymph. D) Carotid. Show Answer Correct Answer: A) Pacemaker. 11. Macaques have the same ABO blood group as humans. If the serum of a macaque with blood group A is tested with human red blood cells, What blood group will the aggregation of red blood cells occur in? A) B AB. B) A AB. C) A B AB. D) A B AB O. Show Answer Correct Answer: A) B AB. 12. Amylase is a(n) ..... A) Carbohydrate. B) Lipid. C) Enzyme. D) Acid. Show Answer Correct Answer: C) Enzyme. 13. In a healthy adult person the total volume of blood is circa A) 6 L. B) 5 L. C) 12 L. D) 3 L. Show Answer Correct Answer: A) 6 L. 14. My heart is about as big as ..... A) The size of my head. B) The size of my fist. C) The size of my foot. D) None of above. Show Answer Correct Answer: B) The size of my fist. 15. How many weeks into your mom's stomach are you when your circulatory system is fully developed? A) 1 week. B) 2 weeks. C) 3 weeks. D) 4 weeks. Show Answer Correct Answer: C) 3 weeks. 16. A patient was diagnosed with a disease which affected the platelets, how would this affect the patient? A) Reduced ability to fight against pathogens. B) Reduced ability to produce blood clots. C) Reduced ability to transport oxygen throughout the body. D) Reduced function to the right atrium. E) Reduced function to the left atrium. Show Answer Correct Answer: B) Reduced ability to produce blood clots. 17. Where in your body might you find sensory neurons? A) Inside your muscles. B) Inside your mouth. C) Inside your brain. D) Inside your stomach. Show Answer Correct Answer: B) Inside your mouth. 18. This type of blood vessel is small and it exchanges materials such as oxygen, carbon dioxide, waste, and glucose to tissues in the body. A) Veins. B) Capillaries. C) Arteries. D) None of above. Show Answer Correct Answer: B) Capillaries. 19. When you inhale the diaphragm- A) Covers the trachea so food won't get into the lungs. B) Relaxes and moves up pushing air out. C) Contracts and moves down so the lungs can fill/expand. D) None of these. Show Answer Correct Answer: C) Contracts and moves down so the lungs can fill/expand. 20. Percentage of RBC in whole blood; "blood fraction" A) Hematocrit. B) Histamine. C) Albumin. D) Erythrocytes. Show Answer Correct Answer: A) Hematocrit. โ PreviousNext โRelated 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 ๐ Back to Homepage ๐ Download PDF Books ๐ Premium PDF Books