This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 158 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 158 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. IN CHILDREN, HEARTBEAT VARIES FROM ..... TIMES PER MINUTE. A) 10-20. B) 80-90. C) 90-100. D) 60-80. Show Answer Correct Answer: C) 90-100. 2. The muscular organ that pumps blood to all parts of the body. A) Lungs. B) Heart. C) Liver. D) None of above. Show Answer Correct Answer: B) Heart. 3. The wall between the left and right ventricles is called the A) Septum. B) Septic. C) Centennial. D) Apex. Show Answer Correct Answer: A) Septum. 4. The myocardium is composed of: A) An outer fibrous layer and an inner serous layer. B) Cardiac muscle tissue. C) A simple squamous epithelium and a layer of areolar connective tissue. D) None of above. Show Answer Correct Answer: B) Cardiac muscle tissue. 5. A hollow, muscular organ that pumps blood throughout the body. A) Skeleton. B) Heart. C) Vein. D) Artery. Show Answer Correct Answer: B) Heart. 6. Arteries carry ..... A) Oxygenated blood from the heart to all parts of the body. B) Deoxygenated blood to the heart. C) Oxygen rich blood to the heart. D) Carbon dioxide rich blood. Show Answer Correct Answer: A) Oxygenated blood from the heart to all parts of the body. 7. I am the most numerous cells in the blood, transporting oxygen A) Plasma. B) Red Blood Cells. C) White Blood Cells. D) Platelets. Show Answer Correct Answer: B) Red Blood Cells. 8. Friend A) Vein. B) Heart. C) Valve. D) Ventricle. Show Answer Correct Answer: A) Vein. 9. This is the straw colored liquid portion of the blood that carries dissolved nutrients. A) Plasma. B) Red blood cells. C) White blood cells. D) I don't know. Show Answer Correct Answer: A) Plasma. 10. Clotting cell; a small fragment of cells that stick to damaged tissues A) Platlet. B) Plasma. C) Antigen. D) Antibody. Show Answer Correct Answer: A) Platlet. 11. What is the name of the main artery in your body? A) Superior vena cava. B) Carotid artery. C) Aorta. D) Pulmonary artery. Show Answer Correct Answer: C) Aorta. 12. Which heart valves are open and which are closed when blood passes out of the right ventricle towards the lungs? A) Bicuspid (mitral) valve closed, tricuspid valve open. B) Bicuspid (mitral) valve open, semi-lunar valve closed. C) Tricuspid valve closed, semilunar valves open. D) Tricuspid valve open, bicuspid (mitral) valve open. Show Answer Correct Answer: C) Tricuspid valve closed, semilunar valves open. 13. The liquid portion of the blood is referred to as: A) Plasma. B) Erythrocytes. C) Water. D) Leukocytes. Show Answer Correct Answer: A) Plasma. 14. This is the colorless liquid in which the components of blood are suspended ..... A) Red blood cells. B) Platelets. C) Plasma. D) White blood cells. Show Answer Correct Answer: C) Plasma. 15. The ..... carries blood throughout the body, the ..... carries blood only to the lung and from the lungs. A) The carries blood throughout the body, the carries blood only to the lung and from the lungs. B) Arterial circulation ; venous circulation. C) Pulmonary circulation ; systemic circulation. D) Systemic circulation ; pulmonary circulation. Show Answer Correct Answer: D) Systemic circulation ; pulmonary circulation. 16. Where do the exchange of Carbon dioxide and oxygen happen? A) Artery. B) Vein. C) Cells. D) Capillary. Show Answer Correct Answer: D) Capillary. 17. What substance does the heart pump throughout the body? A) Water. B) Blood. C) Acid. D) Serum. Show Answer Correct Answer: B) Blood. 18. Connects the arteries to veins A) Arteries. B) Capillaries. C) Aorta. D) Veins. Show Answer Correct Answer: B) Capillaries. 19. IDENTIFY THE PARTS OF THE HEART:muscle that stretches from both right and left atrium A) Pericardium. B) Endocardium. C) Auricle. D) Atrium. E) Ventricles. Show Answer Correct Answer: C) Auricle. 20. Your heart is a big ..... A) Muscle. B) Intestine. C) Vein. D) None of above. Show Answer Correct Answer: A) Muscle. ← 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