This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 458 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 458 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How many times a day does the average human heart beat? A) 1, 000. B) 10, 000. C) 100, 000. D) So much I lost count. Show Answer Correct Answer: C) 100, 000. 2. Right atrioventricular valve A) Bicuspid valve. B) Tricuspid valve. C) Semilunar valve. D) None of above. Show Answer Correct Answer: B) Tricuspid valve. 3. The buildup of fatty material within the walls of arteries. Fat deposits interfere with the artery's blood flow. This can cause a heart attack. A) Hypertension. B) Atherosclerosis. C) Heart attack. D) None of above. Show Answer Correct Answer: B) Atherosclerosis. 4. What is your heart? A) A muscular organ that pumps blood throughout your body. B) A system of organs that all work together. C) A group of cells that work together. D) A single celled organism. Show Answer Correct Answer: A) A muscular organ that pumps blood throughout your body. 5. ECG is a reading that shows A) The activity of heart. B) The electrical activity of cardiac muscle. C) The systole and diastole of cardiac muscle. D) The initiation of heartbeat. Show Answer Correct Answer: B) The electrical activity of cardiac muscle. 6. Middle layer of skin A) Follicle. B) Epidermis. C) Dermis. D) Melanin. Show Answer Correct Answer: C) Dermis. 7. Basic unit of life A) Cell. B) Capillaries. C) Heart valve. D) Vein. Show Answer Correct Answer: A) Cell. 8. Blood leaves your heart through a big artery called ..... A) The ventricle. B) The aorta. C) The veins. D) The capillary. Show Answer Correct Answer: B) The aorta. 9. What kind of tissue is blood? A) Epithelial. B) Connective. C) Muscle. D) Nervous. Show Answer Correct Answer: B) Connective. 10. What condition allows oxygen-rich and oxygen-poor blood to mix? A) Coronary artery disease. B) Atrial septal defect. C) Valve regurgitation. D) Hypertension. Show Answer Correct Answer: B) Atrial septal defect. 11. Age A) Factors that differentiate human heart speed (5). B) Factors that differentiate the speed of the human heart. Show Answer Correct Answer: A) Factors that differentiate human heart speed (5). 12. Involves the removal of a small amount of fluid that protects the brain and spinal cord A) Cerebrospinal fluid analysis. B) Urine analysis. Show Answer Correct Answer: A) Cerebrospinal fluid analysis. 13. Which of the following statement is not related to closed type of circualtion. A) Blood flows in vessels. B) Arteries carry blood to body organs Arteries carry blood to body organs. C) No heart to pump blood. D) Veins carry blood to heart Veins carry blood to heart. Show Answer Correct Answer: C) No heart to pump blood. 14. Which contains Oxygenated blood? A) Pulmonary artery. B) Right Atrium. C) Right ventricle. D) Left Ventricle. Show Answer Correct Answer: D) Left Ventricle. 15. When the blood leaves the heart, where does it exit? A) Aorta. B) The capillaries. C) The lungs. D) Pulmonary vein. Show Answer Correct Answer: A) Aorta. 16. How many liters of blood does the body hold? A) 5 liters. B) 10 liters. C) 1 liter. D) 3.5 liters. Show Answer Correct Answer: A) 5 liters. 17. If an artery becomes completely blocked, there is an immediate, high risk of ..... happening. A) Heart attack. B) Emphysema. C) Artherosclerosis. D) Heart murmur. Show Answer Correct Answer: A) Heart attack. 18. There are 3 layers to the heart. This is the outermost layer of the heart wall. A) Visceral pericardium (aka:epicardium). B) Myocardium. C) Endothelium. D) Mediastinum. Show Answer Correct Answer: A) Visceral pericardium (aka:epicardium). 19. What type of tissue is blood? A) Epithelial. B) Connective. C) Muscle. D) Nervous. Show Answer Correct Answer: B) Connective. 20. The most muscular and powerful chamber of the heart is ..... A) Left atrium. B) Right atrium. C) Left ventricle. D) Right ventricle. Show Answer Correct Answer: C) Left ventricle. ← 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