This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 647 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 647 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. When the heart REFILLS with blood A) Diastole. B) Systole. Show Answer Correct Answer: A) Diastole. 2. Blood moves back to your heart through ..... A) Your arteries. B) Your veins. C) Your capillaries. D) Your toes. Show Answer Correct Answer: B) Your veins. 3. What are the organs in the circulatory system A) Blood, trachea, and heart. B) Blood, blood vessels and heart. C) Blood, blood vessels and lungs. D) None of above. Show Answer Correct Answer: B) Blood, blood vessels and heart. 4. What type of muscle is found in the heart? A) Skeletal. B) Cardiac. C) Smooth. D) Bicep. Show Answer Correct Answer: B) Cardiac. 5. What color is the blood that is low in oxygen and comes from the right side of the heart? A) Bright red. B) Dark red. C) Blue. D) Purple. Show Answer Correct Answer: B) Dark red. 6. Red blood cells are filled of hemoglobin A) True. B) False. Show Answer Correct Answer: A) True. 7. What does the peripheral nervous system do? A) Help you learn new facts. B) Help nerve impulses move. C) Controls balance and coordination. D) Delivers messages from the Central Nervous system to body. Show Answer Correct Answer: D) Delivers messages from the Central Nervous system to body. 8. This is the largest vein in the body. A) Septum. B) Pulmonary Vein. C) Aorta. D) Vena Cava. Show Answer Correct Answer: D) Vena Cava. 9. What are some reasons why someone may need a blood transfusion? A) Cancer patients. B) Surgical patients. C) Patients who have hemophilia. D) All of the above. Show Answer Correct Answer: D) All of the above. 10. ..... takes place when oxygen-rich blood travels to all body tissues except the lungs. A) Pulmonary circulation. B) Systemic circulation. Show Answer Correct Answer: B) Systemic circulation. 11. The body systems work together to maintain the body's internal climate. This balance is called ..... A) Immunity. B) Fever. C) Homeostasis. D) Carbonic acid. Show Answer Correct Answer: C) Homeostasis. 12. Nutrient, oxygen, carbon dioxide and other waste materials can pass through the walls of ..... A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: C) Capillaries. 13. What blood vessels carry blood to the heart from the lungs? A) Pulmonary Arteries. B) Pulmonary Veins. C) Aorta. D) Superior and Inferior Vena Cava. Show Answer Correct Answer: B) Pulmonary Veins. 14. The circulatory system moves oxygen and ..... around the body A) Nutrients. B) Fiber. C) Air. D) None of above. Show Answer Correct Answer: A) Nutrients. 15. ..... represents when the blood vessels return blood to the heart in preparation for the next ventricular contraction. Systole begins when the mitral valve (or tricuspid) closes and concludes with the closure of the aortic valve (or pulmonic). A) Diastole. B) Systole. C) Lunar artery. D) Aneurysm. Show Answer Correct Answer: A) Diastole. 16. Anemia is a disorder..... A) Erythrocytes (Red blood cells). B) Leukocytes (White blood cells). C) Blood plasma. D) Thrombocytes (Blood clots). Show Answer Correct Answer: A) Erythrocytes (Red blood cells). 17. The liquid part of blood, made mostly of water, in which oxygen, nutrients, and minerals are dissolved. A) Platelets. B) Plasma. C) Red blood cells. D) White blood cells. Show Answer Correct Answer: B) Plasma. 18. It is the movement of the blood from the heart to the rest of the body, excluding the lungs. A) Pulmunary Circulation. B) Systemic Circulation. C) Coronary Circulation. D) Open Circulation. Show Answer Correct Answer: B) Systemic Circulation. 19. What type of blood is distributed by the veins. A) Deoxygenated Blood. B) Oxygenated Blood. Show Answer Correct Answer: B) Oxygenated Blood. 20. The process of exchanging oxygen and carbon dioxide in the lungs. A) Inspiration. B) Expiration. C) Internal respiration. D) External respiration. Show Answer Correct Answer: D) External respiration. ← 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