This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 341 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 341 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What carries blood to from the heart? A) Vein. B) Capillary. C) Artery. D) None of above. Show Answer Correct Answer: A) Vein. 2. The part of blood that sticks together to help stop bleeding at a cut A) Red blood cells. B) White blood cells. C) Platelets. D) Plasma. Show Answer Correct Answer: C) Platelets. 3. When does a tachycardia occur? A) When the heart beats slowly. B) When the heart beats fast. Show Answer Correct Answer: B) When the heart beats fast. 4. What is label "1" ? A) Right atrium. B) Aorta. C) Inferior vena cava. D) Left atrium. E) Left ventricle. Show Answer Correct Answer: A) Right atrium. 5. The nurse is reviewing the anatomy and physiology of the cardiac system with a patient scheduled for pacemaker insertion. Which chamber of the heart should the nurse instruct has the greatest workload and usually fails first as a result? A) Left atrium. B) Right atrium. C) Left ventricle. D) Right ventricle. Show Answer Correct Answer: C) Left ventricle. 6. What is not a function of our circulatory system? A) It circulatory system is a transport system of the human bodywhich consists of a network that supplies food, water, oxygenand other substances throughout the body. B) It transports blood, oxygen, nutrients, carbon dioxide andhormones throughout the body. C) It act as tubes or pipes through which blood flows in the whole body. D) The substances present in the blood helps repair thedamaged tissues. Show Answer Correct Answer: A) It circulatory system is a transport system of the human bodywhich consists of a network that supplies food, water, oxygenand other substances throughout the body. 7. The Circulatory System helps in transportation of: A) Oxygen. B) Nutrients. C) Water. D) All of these. Show Answer Correct Answer: D) All of these. 8. The heart pumps blood to get ..... to our cells. A) Carbon dioxide. B) Urea. C) Oxygen. D) None of above. Show Answer Correct Answer: C) Oxygen. 9. Where does the blood travel after leaving the right ventricle? A) To the left atrium. B) To the left lung via the pulmonary artery. C) To the right lung via the pulmonary artery. D) To the aorta. Show Answer Correct Answer: C) To the right lung via the pulmonary artery. 10. Separates the right and left sides of the heart ..... A) Septum. B) Atria. C) Ventricle. D) Valves. Show Answer Correct Answer: A) Septum. 11. Which are the largest blood vessels? A) Veins. B) Arteries. C) Capillaries. D) None of above. Show Answer Correct Answer: B) Arteries. 12. The circulatory system is very important because all of our organs need the oxygen and nutrients carried by our blood. A) True. B) False. Show Answer Correct Answer: A) True. 13. What is the name of the fluid in Lymph Vessels? A) Blood. B) Plasma. C) Water. D) Lymph. Show Answer Correct Answer: D) Lymph. 14. When the atria are relaxed, they begin to fill with blood. Thisrelaxation is called A) Diastole. B) Systole. C) Atriole. D) Sinoatrial. Show Answer Correct Answer: A) Diastole. 15. The purpose of mucus inside our nose is A) To prevents the air from entering our lungs. B) To prevents the bacteria, germs and dust from entering our lungs. C) To make the air cooler. D) To trap the carbon dioxide from the outside. Show Answer Correct Answer: B) To prevents the bacteria, germs and dust from entering our lungs. 16. This is the inner layer of pericardium that encloses the heart. A) Auricles. B) Left and right coronary arteries. C) Visceral Pericardium. D) Parietal Pericardium. Show Answer Correct Answer: C) Visceral Pericardium. 17. How many percent is platelets and white blood cells? A) 55%. B) 44%. C) 1%. D) None of above. Show Answer Correct Answer: C) 1%. 18. Diameter of most capillaries, except sinusoidal capillaries A) 5-6 $\mu$m. B) 6-9 $\mu$m. C) 7-9 $\mu$m. D) 5-9 $\mu$m. Show Answer Correct Answer: C) 7-9 $\mu$m. 19. RBC's are of several kinds A) True. B) False, WBC's are of several kinds. Show Answer Correct Answer: B) False, WBC's are of several kinds. 20. What does increasing pulse rate achieve? A) Increased oxygen supply to muscles. B) Increased blood flow. C) Increased glucose supply to the muscles. D) All 3. Show Answer Correct Answer: D) All 3. ← 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