This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 134 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 134 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which organ pumps blood around the body? A) Lungs. B) Liver. C) Pancreas. D) Heart. Show Answer Correct Answer: D) Heart. 2. The tiny white cords that anchor the flaps of the bicuspid and tricuspid valves to the walls of the ventricles. A) Semilunar cords. B) Tendon chords. C) Atrioventricular cords. D) Pulmonary flaps. Show Answer Correct Answer: B) Tendon chords. 3. Which of the following parts of the respiratory system contains the vocal cords? A) Pharynx. B) Larynx. C) Trachea. D) Bronchi. Show Answer Correct Answer: B) Larynx. 4. When we exhale A) We breath in oxygen. B) We breath out carbon dioxide. Show Answer Correct Answer: B) We breath out carbon dioxide. 5. A general term that describes the force blood exerts against the walls of vessels is called ..... A) Ventricular pressure. B) Blood pressure. C) Atrioventricular pressure. D) Pulse pressure. Show Answer Correct Answer: B) Blood pressure. 6. What happens to the heart when you are exercising? A) The hurt pumps just enough oxygen to keep the body working. B) The heart pumps faster so that you get more oxygen. Show Answer Correct Answer: B) The heart pumps faster so that you get more oxygen. 7. Identify the chamber of the heart that receives blood from the lungs. * A) Left atrium. B) Right atrium. C) Left ventricle. D) Right ventricle. Show Answer Correct Answer: A) Left atrium. 8. A large dome-shaped muscle under the lungs is called the ..... A) Diaphragm. B) Heart. C) Stomach. D) Trachea. Show Answer Correct Answer: A) Diaphragm. 9. These structures allow the forward movement of blood, but doesn't allow it to move backwards. A) Veins. B) Arteries. C) Valves. D) Aorta. Show Answer Correct Answer: C) Valves. 10. The type of blood vessel that returns blood to the heart is a ..... A) Artery. B) Vein. C) Capillary. D) Valve. Show Answer Correct Answer: B) Vein. 11. Blood travels from the veins into the ..... A) Heart. B) Organ tissues. C) Lungs. D) Capillaries. Show Answer Correct Answer: A) Heart. 12. ..... gives a red colour to the blood A) Pigment. B) Red colour. C) Haemoglobin. D) Chlorophyll. Show Answer Correct Answer: C) Haemoglobin. 13. A ..... is a tube that allows blood to flow. A) Organ. B) Blood vessels. C) Oxygen. D) Blood tube. Show Answer Correct Answer: B) Blood vessels. 14. Aneurysm A) Inadequate number of red blood cells, hemoglobin, or both I. B) Ballooning out (saclike formation) of an artery wall. C) Vessel becomes clogged with hardened material ( "hardening of the arteries" ). D) None of above. Show Answer Correct Answer: B) Ballooning out (saclike formation) of an artery wall. 15. Which of the following is a yoga exercise good for the heart? A) Trikonasana. B) Dhanurasana. C) Tadasana. D) All of these. Show Answer Correct Answer: D) All of these. 16. An example of diffusion is A) CO2 and O2 exchange in the lungs. B) Glucose transport. C) Na+ / K+ Pumps. D) Exocytosis. Show Answer Correct Answer: A) CO2 and O2 exchange in the lungs. 17. Mrs. Moore made a circuit. It did not light up. Why? A) The switch is open. B) The switch is closed. Show Answer Correct Answer: A) The switch is open. 18. Tube-like passageway used by food, liquid, and air. It contains the epiglottis, a flap that folds down when you swallow to prevent food or water from entering the lungs A) Pharynx. B) Trachea. C) Larynx. D) Esophagus. Show Answer Correct Answer: A) Pharynx. 19. The circulatory system pumps blood from the heart to ..... in the lungs A) Caterpillars. B) Capillaries. C) Oxygen. D) Air. Show Answer Correct Answer: B) Capillaries. 20. The slowest moving blood is found in the A) Arteries. B) Veins. C) Capillaries. D) Heart. Show Answer Correct Answer: C) Capillaries. ← 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