This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 279 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 279 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In capillaries occurs..... A) Exchange of oxygen and carbon dioxide. B) Exchange of food essences. Show Answer Correct Answer: A) Exchange of oxygen and carbon dioxide. 2. The blood vessels that carry blood from the heart to the rest of the body are..... A) Capillary. B) Blood cells. C) Vena. D) Arteries. Show Answer Correct Answer: D) Arteries. 3. Why is the diaphragm important to the respiratory system? A) It contracts or expands air from the lungs. B) It helps the system to digest. C) It helps the system to do its main functions. D) It helps decrease the carbon dioxide in the system. Show Answer Correct Answer: A) It contracts or expands air from the lungs. 4. It is made up of the heart, blood vessels, and essential liquid known as blood A) Circulatory system. B) Circulation. C) Blood. D) Heart. E) Arteriosclerosis. Show Answer Correct Answer: A) Circulatory system. 5. WHich amongst them is not the function of the circulatory system? A) Transportation of many substances around the body. B) Maintaining homeostasis. C) Digestion. D) Protection. Show Answer Correct Answer: C) Digestion. 6. Can we survive without a heart? A) Yes. B) No. Show Answer Correct Answer: B) No. 7. WATERY LIQUID AQUEOUS LIQUID A) WHITE CELLS. B) RED CELLS. C) PLATELETS. D) PLASMA. Show Answer Correct Answer: D) PLASMA. 8. TRUE or FALSEThe left and right ventricles makes up the upper chamber. A) TRUE. B) FALSE. Show Answer Correct Answer: B) FALSE. 9. Microscopic sacs where gas exchange takes place; are called: A) Alveoli. B) Bronchi. C) Villi. D) None of above. Show Answer Correct Answer: A) Alveoli. 10. A blood specimen collected in an anticoagulant tube separates into three layers. The bottom layer consists of ....., the middle layer is called the ..... and is composed of ..... and ....., and the top layer is liquid called ..... A) WBC, Buffy Coat, WBC, Platelets, plasma. B) Buffy coat, WBC, RBC, Platelets, plasma. C) Plasma, buffy coat, WBC, RBC, platelets. D) RBC, Buffy Coat, WBC, Platelets, plasma. Show Answer Correct Answer: D) RBC, Buffy Coat, WBC, Platelets, plasma. 11. Veins, carry blood which contains carbon dioxide back to the lungs? A) False. B) True. Show Answer Correct Answer: B) True. 12. Arteriosclerosis occurs when your arteries become more ..... A) Stiff. B) Loose. C) Burst. D) Closes. Show Answer Correct Answer: A) Stiff. 13. Capillaries are the smallest blood vessels in the circulatory system. A) True. B) False. Show Answer Correct Answer: A) True. 14. Inferior vena cava:from A) Heart. B) Lower part of body. C) Upper part of body. D) None of above. Show Answer Correct Answer: B) Lower part of body. 15. ..... circulation sends blood from the heart to the lungs and back A) Systemic. B) Vascular. C) Femoral. D) Pulmonary. Show Answer Correct Answer: D) Pulmonary. 16. What would happen if the coronary arteries were blocked? A) You could have a stroke. B) You can have a heart attack. C) You won't stop bleeding. D) You can't breathe. Show Answer Correct Answer: B) You can have a heart attack. 17. Another term for a blood pressure cuff A) Endoscope. B) Stethoscope. C) Sphygmomanometer. D) Echocardiogram. Show Answer Correct Answer: C) Sphygmomanometer. 18. What is the scientific name given to red blood cells? A) Megakaryocytes. B) Monocytes. C) Erythrocytes. D) Macrophages. Show Answer Correct Answer: C) Erythrocytes. 19. The blood which has less quantity of oxygen is? A) Oxygenated blood. B) Deoxygenated blood. C) Both oxy and deoxygenated blood. D) All of the above. Show Answer Correct Answer: B) Deoxygenated blood. 20. A typical adult hematocrit is around A) 45. B) Liz. C) Ashley. D) Pick this. Show Answer Correct Answer: A) 45. ← 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