This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 696 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 696 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Vein that carries deoxygenated blood from the upper half of the body to the heart's right atrium. A) Superior Vena Cava. B) Capillaries. C) Aorta. D) Heart. Show Answer Correct Answer: A) Superior Vena Cava. 2. Superior vena cava-right atrium-Tricuspid valve-right ventricle-Pulmonary valve-?-lungs-Pulmonary veins-left atrium-mitral valve-left ventricle-aorta-rest of body A) PULMONARY ARTERY. B) PULMONARY VEINS. C) CAPIL ARTERY. D) AORTA. Show Answer Correct Answer: A) PULMONARY ARTERY. 3. "Soldier cells" that fight invading bacteria in the body. A) Red blood cells/ red corpuscles. B) Plasma. C) White blood cells/ white corpuscles. D) Platelets. Show Answer Correct Answer: C) White blood cells/ white corpuscles. 4. Which of the following is NOT in the blood stream? A) Red Blood Cells. B) White Blood Cells. C) Platelets. D) Green Blood Cells. Show Answer Correct Answer: D) Green Blood Cells. 5. What heart structure is this? A) Fasting. B) Epiphysis. C) Erythrocyte. D) Septum. Show Answer Correct Answer: D) Septum. 6. What is the ideal blood pressure for a healthy adult? A) 180/40. B) 120/80. C) 140/60. D) 120/20. Show Answer Correct Answer: B) 120/80. 7. The blood vessels that carry blood from the lungs back to the heart are called blood vessels. A) Pulmonary artery. B) Coronary artery. C) Pulmonary vein. D) Coronary vein. Show Answer Correct Answer: C) Pulmonary vein. 8. Which blood cells transport oxygen and carbon dioxide? A) Platelets. B) Red blood cells. C) White blood cells. D) None of above. Show Answer Correct Answer: B) Red blood cells. 9. Space within blood vessels through which the blood flows A) Lumen. B) AV node. C) Because of the difference. D) Purkinje fibers. Show Answer Correct Answer: A) Lumen. 10. ..... is a muscular organ about the size of a closed fist, it pumps blood to the different parts of the body A) Heart. B) Blood. C) Blood vessels. D) None of above. Show Answer Correct Answer: A) Heart. 11. Name the system that helps to circulate the blood in the human body. A) Digestive system. B) Circulatory system. C) Heart. D) Respiratory system. Show Answer Correct Answer: B) Circulatory system. 12. This filters the blood by removing worn out red blood cells? A) Spleen. B) Tonsils. C) Arteries. D) Veins. Show Answer Correct Answer: A) Spleen. 13. Normal BP is 120/80, If a person's blood pressure reading shows 170/90, what does it mean? A) Hypertension. B) Hypotension. C) Normal blood pressure. D) None of above. Show Answer Correct Answer: A) Hypertension. 14. These blood vessels are responsible for connecting arteries and veins. They act as "highways" connecting veins and arteries. A) Veins. B) Arteries. C) Capillaries. D) None of above. Show Answer Correct Answer: C) Capillaries. 15. Generally have carbon dioxide ($CO2$ A) Arteries (pulses) [6]. B) Venous Vessels (Back) [6]. Show Answer Correct Answer: B) Venous Vessels (Back) [6]. 16. Proteins produced by the immune system that destroy foreign substances ..... A) Antigens. B) Agglutinates. C) Platelets. D) Antibodies. Show Answer Correct Answer: D) Antibodies. 17. Normal blood presure is less than ..... A) 130/95. B) 180/20. C) 120/80. D) 140/60. Show Answer Correct Answer: C) 120/80. 18. Nucleus is absent in A) RBCs. B) WBCs. C) All blood cells. D) Liver cells. Show Answer Correct Answer: A) RBCs. 19. Blood vessels that carry blood away from the heart are know as ..... A) Veins (red-orange). B) Arteries (purple). C) Capillaries (yellow). D) None of above. Show Answer Correct Answer: B) Arteries (purple). 20. Which is the muscle that assists with breathing A) Tongue. B) Diaphragm. C) Epiglottis. D) None of above. Show Answer Correct Answer: B) Diaphragm. ← 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