This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 248 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 248 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. This disorder refers to a slow heart rate. A) Arrhythmia. B) Tachycardia. C) Heart murmurs. D) Hypertension. E) Bradycardia. Show Answer Correct Answer: E) Bradycardia. 2. Low blood pressure in veins is due to A) Their large lumen relative to the diameter. B) Lower blood volume. C) A lot of pressure had been lost at the capillary bed. D) All of the above. Show Answer Correct Answer: D) All of the above. 3. Electric instruments that doctors place inside a person's chest to control the heartbeat. A) Heart attack. B) Pacemaker. C) Stroke. D) Angioplasty. Show Answer Correct Answer: B) Pacemaker. 4. What are the main organs of the circulatory system? A) Brain, spine, & nerves. B) Heart, arteries, & veins. C) Heart, lungs, & veins. D) Skin, nails, & hair. Show Answer Correct Answer: B) Heart, arteries, & veins. 5. The windpipe; a passage through which air moves in the respiratory system. A) Trachea. B) Lungs. C) Larynx. D) Bronchi. Show Answer Correct Answer: A) Trachea. 6. Which statement best describes arteries? A) They have thick walls and transport blood away from the heart. B) They have thick walls and transport blood toward the heart. C) They have thin walls and transport blood away from the heart. D) They have thin walls and transport blood toward the heart. Show Answer Correct Answer: A) They have thick walls and transport blood away from the heart. 7. Which chamber of the heart receives deoxygenated blood from the body? A) Right Atrium. B) Right Ventricle. C) Left Atrium. D) Left Ventricle. Show Answer Correct Answer: A) Right Atrium. 8. Which is the correct statement about white blood cells? A) They can be produced by a type of blood cell. B) They contain haemoglobin. C) They help the blood to clot. D) They protect the body against disease. Show Answer Correct Answer: D) They protect the body against disease. 9. Which of the following blood groups is that of the 'Universal donor'? A) A. B) O. C) AB. D) B. Show Answer Correct Answer: B) O. 10. What is the pressure of blood against the walls of blood vessels when the heart is contracting? A) Diastolic pressure. B) Systolic pressure. Show Answer Correct Answer: B) Systolic pressure. 11. Recall which blood vessel serves as the location for the exchange of gases and nutrients between blood and tissue cells. A) Arteries. B) Capillaries. C) Veins. D) None of above. Show Answer Correct Answer: B) Capillaries. 12. Involves the presence or absence of the Rh factor, another antigen, on the red blood cell's surface A) Rh grouping system. B) Type A. C) Antigens. D) Agglutination. E) Infusion. Show Answer Correct Answer: A) Rh grouping system. 13. Which sequence correctly indicates the branching pattern of the human respiratory system? A) Trachea $\rightarrow$ bronchi $\rightarrow$ bronchioles $\rightarrow$ alveoli. B) Trachea $\rightarrow$ bronchioles $\rightarrow$ bronchi $\rightarrow$ alveoli. C) Alveoli $\rightarrow$ trachea $\rightarrow$ bronchioles $\rightarrow$ bronchi. D) Alveoli $\rightarrow$ bronchioles $\rightarrow$ trachea $\rightarrow$ bronchi. Show Answer Correct Answer: A) Trachea $\rightarrow$ bronchi $\rightarrow$ bronchioles $\rightarrow$ alveoli. 14. What are the four main components of the blood? A) Plasma, Red Blood Cells, Hemoglobin, Platelets. B) Plasma, Hemoglobin, White Blood Cells, Platelets. C) Plasma, Red Blood Cells, White Blood Cells, Platelets. D) Plasma, Red Blood Cells, White Blood Cells, Hemoglobin. Show Answer Correct Answer: C) Plasma, Red Blood Cells, White Blood Cells, Platelets. 15. What does the large intestine do? A) Digest the food from this process. B) Makes a pathway for the food. C) Reabsorb a lot of the water from this process. D) Absorbs the food from this process. Show Answer Correct Answer: C) Reabsorb a lot of the water from this process. 16. Blood travelling to the heart from the body cells is A) Oxygen rich and carbon dioxide poor. B) Oxygen rich and carbon dioxide rich. C) Oxygen poor and carbon dioxide poor. D) Oxygen poor and carbon dioxide rich. Show Answer Correct Answer: D) Oxygen poor and carbon dioxide rich. 17. What is it called when a blood vessel supplying blood to the brain is clogged? A) Myocardial infarction. B) Coronary artery disease. C) Brain freeze. D) Stroke. Show Answer Correct Answer: D) Stroke. 18. Which blood vessel takes blood BACK to the heart? A) Arteries. B) Capillaries. C) Veins. D) All of them. Show Answer Correct Answer: C) Veins. 19. From the largest to the smallest the order of blood vessels is A) Capillary, artery and vein. B) Vein, artery and capillary. C) Artery, vein and capillary. D) None of above. Show Answer Correct Answer: C) Artery, vein and capillary. 20. What do the units mmHg stand for? A) Millimetre of hydrogen. B) Millimetre of nitrogen. C) Millimetre of mercury. D) Millimetre of helium. Show Answer Correct Answer: C) Millimetre of mercury. ← 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