This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 590 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 590 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What important job does the heart perform in the body? A) It digests food. B) It pumps the blood. C) It filters waste. D) It controls body temperature. Show Answer Correct Answer: B) It pumps the blood. 2. Which of the following makes up roughly 40-45% of blood? A) Red Blood Cells. B) White Blood Cells. C) Platelets. D) Plasma. Show Answer Correct Answer: A) Red Blood Cells. 3. A sheep heart is A) Similar to a human heart in size and function. B) Similar to a human heart in size but not function. C) Unlike a human heart in size but similar in function. D) Nothing like a human heart. Show Answer Correct Answer: A) Similar to a human heart in size and function. 4. Which term represents the amount of blood the heart pumps each minute? A) Heart rate. B) Stroke volume. C) Cardiac output. D) None of above. Show Answer Correct Answer: C) Cardiac output. 5. The preferred vein for venipuncture in the "H" pattern is the. A) Accessory cephalic. B) Basil. C) Cephalic. D) Median cubital. Show Answer Correct Answer: D) Median cubital. 6. How much does the heart weigh A) 1 pound. B) Less than a pound. C) 1 1/2 pounds. D) 2 pounds. Show Answer Correct Answer: B) Less than a pound. 7. U-Shaped muscle that helps the lungs expand A) Transversely of the abdomen. B) Diaphragm. C) Sternocleidomastoid. D) Spine erector. Show Answer Correct Answer: B) Diaphragm. 8. Function of blood capillaries..... A) To join veins and arteries. B) To diffuse out essential substances. C) To filter blood. D) All the above పైవన్నీ. Show Answer Correct Answer: D) All the above పైవన్నీ. 9. The purkinje fibers contain more glycogen than surrounding cardiomyocytes A) True. B) False. Show Answer Correct Answer: A) True. 10. The ..... leads directly from the left ventricle and branches into many arteries that carry blood around the body. A) Aorta. B) Vena cava. C) Pulmonary artery. D) Pulmonary veins. Show Answer Correct Answer: A) Aorta. 11. What is the main job of red blood cells? A) Fighting disease. B) Clotting blood. C) Carrying oxygen and carbon dioxide. D) Producing bone marrow. Show Answer Correct Answer: C) Carrying oxygen and carbon dioxide. 12. High blood pressure is dangerous to your health. A) No. B) Never. C) Yes. D) None of above. Show Answer Correct Answer: C) Yes. 13. Which of the following is a way that humans could change/destroy an ecosystem? A) Mowing the grass. B) Building a shopping center. C) Enjoying a picnic. D) Watching tv. Show Answer Correct Answer: B) Building a shopping center. 14. Type of circulation where blood circulates in the heart. A) Coronary. B) Lymphatic. C) Systemic. D) Pulmonary. Show Answer Correct Answer: A) Coronary. 15. It is the wall that separates the right and left sides of the heart. A) Septum. B) Mitral valve. C) Tricuspid valve. D) Cardiac muscle. Show Answer Correct Answer: A) Septum. 16. I am one of the last stops in your Digestive System. I pass the water from your food onto your cells. Who am I? A) I am your Small Intestine. B) I am your Colon. C) I am your Gallbladder. D) I am your Stomach. Show Answer Correct Answer: A) I am your Small Intestine. 17. What is the role of red blood cells in the blood? A) They help in the clotting of blood. B) They fight against infections. C) They carry oxygen from the lungs to the rest of the body. D) They carry nutrients to the cells. Show Answer Correct Answer: C) They carry oxygen from the lungs to the rest of the body. 18. What do all living organisms need to survive? A) Energy. B) Blood. C) Chlorophyll. D) Soil. Show Answer Correct Answer: A) Energy. 19. Individuals with blood group AB is known as A) Universal donors. B) Universal recipients. Show Answer Correct Answer: B) Universal recipients. 20. It helps the blood to clot. A) Thrombocytes. B) Plasma. C) Erythrocytes. D) Leucocytes. Show Answer Correct Answer: A) Thrombocytes. ← 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