This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 262 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 262 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Intracellular-water in cells have ..... % of water A) 5%. B) 70%. C) 25%. D) None of above. Show Answer Correct Answer: B) 70%. 2. Oxygen is carried around the body by ..... cells. A) Red. B) White. Show Answer Correct Answer: A) Red. 3. Each blood types has specific ..... on each RBC and produces specific ..... which can prevent certain blood types from being mixed. A) Antigens, arterioles. B) Arterioles, aorta. C) Antibodies, antigens. D) Antigens, antibodies. Show Answer Correct Answer: D) Antigens, antibodies. 4. During exercise blood is directed away from the organs and this is achieved via: A) Vasoconstriction of the capillaries at the internal organs. B) Vasodilation of the capillaries at the organs. C) Arteries pump blood away from the heart. D) Veins pump blood back to the heart. Show Answer Correct Answer: A) Vasoconstriction of the capillaries at the internal organs. 5. The main organ of the circulatory system is the? A) Brain. B) Lungs. C) Heart. D) Glands. Show Answer Correct Answer: C) Heart. 6. Which of the following is the term for the hollow passageway in blood vessels through which blood flows? A) Lumen. B) Metarteriole. C) Pulse. D) Capillary. Show Answer Correct Answer: A) Lumen. 7. What blood vessels carry (unoxygenated) blood from the body back to the heart? A) Veins. B) Arteries. C) Capillaries. D) Ducts. Show Answer Correct Answer: A) Veins. 8. Which type of blood vessel can you feel your pulse in? A) Vein. B) Artery. C) Capillary. D) Venule. Show Answer Correct Answer: B) Artery. 9. Arrange the size of the veins from large to small. A) Vena cava Venules Veins Venous capillaries. B) Vena cava Veins Venules Venous capillaries. C) Veins Vena cava Venules Venous capillaries. D) Vena cavaVeinsVenous capillariesVenules. Show Answer Correct Answer: B) Vena cava Veins Venules Venous capillaries. 10. Deoxygenated blood flow from the body cells to the heart via ..... A) Vena cava. B) Pulmonary artery. C) Aorta. D) Pulmonary vein. Show Answer Correct Answer: A) Vena cava. 11. Blood has a liquid part called A) VESSELS. B) VEINS. C) PLASMA. D) None of above. Show Answer Correct Answer: C) PLASMA. 12. Which of the following is NOT the function of the cardiovascular system? A) Transport O2 and nutrients to tissues. B) Storage minerals and fats. C) Removal of CO2 wastes from tissues. D) Regulation of body temperature. Show Answer Correct Answer: B) Storage minerals and fats. 13. The skin is the largest organ of the body A) False. B) True. Show Answer Correct Answer: B) True. 14. Capillaries allow the exchange of materials from the blood to the cell. A) TRUE. B) FALSE. Show Answer Correct Answer: A) TRUE. 15. Blood in veins is under lower pressure than in arteries and cannot get back to the heart by pressure alone, how does the body assist. A) Muscles contracting. B) Standing on your head. C) Lying down. D) Vasodilation. Show Answer Correct Answer: A) Muscles contracting. 16. The human heart is located at ..... A) The center of your chest slightly tilted to your left. B) The center of your chest slightly tilted to the right. C) The left side of your chest. D) The right side of the chest. Show Answer Correct Answer: A) The center of your chest slightly tilted to your left. 17. A condition marked by severe pain in the chest, often spreading to the shoulders, arms and neck, caused by an inadequate blood supply in the heart (Circulatory) A) Acid Reflux. B) Asthma. C) Angina Pectoris. D) None of above. Show Answer Correct Answer: C) Angina Pectoris. 18. WHEN DOES THE HEART REST? A) ALWAYS. B) NEVER. C) AT NIGHT. D) DURING THE DAY. Show Answer Correct Answer: B) NEVER. 19. Which of blood circulation does this image corresponds to? A) Global circulation. B) Pulmonary circulation. C) Systemic circulation. D) Large circulation. Show Answer Correct Answer: B) Pulmonary circulation. 20. Causes an overproduction of white blood cells that crowd the blood. A) Leukemia. B) Heart disease. C) Hemophilia. D) Sickle-cell anemia. Show Answer Correct Answer: A) Leukemia. ← 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