This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 268 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 268 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. First step in the two-step heart beat process A) Diastole. B) Blood pressure. C) Arteriosclerosis. D) Atherosclerosis. E) Atherosclerosis. Show Answer Correct Answer: A) Diastole. 2. A fast pulse is also called ..... A) Tachycardia. B) Tachypnea. C) Bradycardia. D) Bradypnea. Show Answer Correct Answer: A) Tachycardia. 3. Which organ system primarily help the muscular system to provide movement of the body? A) Skeletal system. B) Integumentary system. C) Respiratory system. D) Lymphatic system. Show Answer Correct Answer: A) Skeletal system. 4. After the ventricles squeeze the blood into the arteries, these valves close to stop blood flowing back into the ventricles. A) Tricuspid, mitral. B) Tricuspid, aortic. C) Aortic, mitral. D) Aortic, pulmonary. Show Answer Correct Answer: D) Aortic, pulmonary. 5. Impure blood is carried by ..... A) Arteries. B) Heart. C) Veins. D) Blood vessels. Show Answer Correct Answer: C) Veins. 6. Red blood cells give ..... and ..... to blood. A) Oxygen. B) Red colour and oxygen. C) Red colour. D) None of above. Show Answer Correct Answer: B) Red colour and oxygen. 7. What is the flap of tissue that prevents food or water from entering the airway? A) Peristalsis. B) Esophagus. C) Pharynx. D) Epiglottis. Show Answer Correct Answer: D) Epiglottis. 8. Small bodies that play arole in blood coagulation when the body is wounded A) Red blood cells. B) Blood platelets. C) White blood cells. D) Plasma. Show Answer Correct Answer: B) Blood platelets. 9. The liver also produces nutrients and waste which are carried to other parts of the body. A) True. B) False. Show Answer Correct Answer: A) True. 10. Which valve controls blood flow from the Right Ventricle to the Lungs A) Bicuspid. B) Tricuspid. C) Pulmonary Semilunar Valve. D) Aortic Semilunar Valve. E) There is no valve, blood just flows right in. Show Answer Correct Answer: C) Pulmonary Semilunar Valve. 11. The cells in the blood that help fight germs like infection and viruses A) Red blood cells. B) Platelets. C) White blood cells. D) Plasma. Show Answer Correct Answer: C) White blood cells. 12. Why do chordates need a circulatory system that completely removes mixing of deoxygenated and oxygenated blood? A) Aquatic. B) Endotherms, high metabolism. C) Ectotherms, energy changes with the temperature of the environment. D) None of above. Show Answer Correct Answer: B) Endotherms, high metabolism. 13. Important organ of the circulatory system is ..... A) Kidney. B) Lungs. C) Heart. D) Stomach. Show Answer Correct Answer: C) Heart. 14. The blood group AB is a- A) Universal Donor. B) Universal Recipient. C) Both of the above. D) None of the above. Show Answer Correct Answer: B) Universal Recipient. 15. Why is it important to have a healthy circulatory system? A) To improve muscle strength. B) To ensure proper blood flow to all body parts. C) To increase brain size. D) To make the skin glow. Show Answer Correct Answer: B) To ensure proper blood flow to all body parts. 16. Blood clot in the brain A) Heart attack. B) Stroke. C) Hypertension. D) Diabetes. Show Answer Correct Answer: B) Stroke. 17. What happens to the blood every time the heart beats? A) It helps the body fight infection. B) It goes in two different directions. C) Pumps the blood. D) Creates tiny pieces of blood cells inside the membranes. Show Answer Correct Answer: B) It goes in two different directions. 18. What type of antigens can be found if someone has blood type A? A) A. B) B. C) A and B. D) None. Show Answer Correct Answer: A) A. 19. ..... carry blood that needs oxygen back to the heart. A) Arteries. B) Capillaries. C) Veins. D) None of above. Show Answer Correct Answer: C) Veins. 20. We inhale..... A) Oxygen. B) Carbon Dioxide. C) Water. D) Ill. Show Answer Correct Answer: A) Oxygen. ← 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