This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 594 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 594 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Passage of water molecules through root hairs into the root cells is an ..... A) Active transport. B) Passive transport. C) Both. D) None is none. Show Answer Correct Answer: B) Passive transport. 2. What is the size of the human heart typically compared to? A) To pea. B) A grapefruit. C) Your fist. D) A basketball. Show Answer Correct Answer: C) Your fist. 3. This structure is on the outside of the heart and supplies blood to the myocardium. A) Auricles. B) Left and right coronary arteries. C) Pericardium. D) Interventricular groove or sulcas. Show Answer Correct Answer: B) Left and right coronary arteries. 4. What is the role of white blood cells in the circulatory system? A) To carry oxygen. B) To fight infections and foreign invaders. C) To transport nutrients. D) To produce hormones. Show Answer Correct Answer: B) To fight infections and foreign invaders. 5. Frances was seen at the urgent care center complaining of chest pain. Diagnostic tests revealed that Frances had a heart attack. This is caused by A) Angina pectoris. B) Coronary artery disease. C) Arrhythmias. D) Heart failure. Show Answer Correct Answer: B) Coronary artery disease. 6. Which of these blood vessels carry blood away from the heart? A) Veins. B) Capillaries. C) Arteries. D) None of above. Show Answer Correct Answer: C) Arteries. 7. What is plasma mostly made of A) Lipids. B) Red blood cells. C) Water. D) Protein. Show Answer Correct Answer: C) Water. 8. The heart is known as a Double Pump because both sides beat in unison. A) True. B) False. Show Answer Correct Answer: A) True. 9. Amphibians have ..... atria A) One. B) Two. C) Three. D) Four. Show Answer Correct Answer: B) Two. 10. Also known as throat, it is a tube in which both air and food passes through. A) Larynx. B) Pharynx. C) Trachea. D) Bronchi. Show Answer Correct Answer: B) Pharynx. 11. What is the function of the human respiratory system? A) Transport of nutrients. B) Converting food to energy. C) Regulation of body temperature. D) Exchange of gases. Show Answer Correct Answer: D) Exchange of gases. 12. There are 3 layers to the heart. This is the middle layer of the heart wall. It is the thickest of the 3 layers and is made of cardiac muscle arranged spirally around the heart which creates a "wringing" motion to the heart. A) Visceral pericardium (aka:epicardium). B) Myocardium. C) Endothelium. D) Mediastinum. Show Answer Correct Answer: B) Myocardium. 13. The person having ..... blood group is a universal recipient A) A. B) B. C) O. D) AB. Show Answer Correct Answer: D) AB. 14. Deoxygenated blood pathway arrange steps from 1-7:pulmonary artery A) 7. B) 6. C) 5. D) 4. E) 3. Show Answer Correct Answer: B) 6. 15. This organism recycles nutrients back into the soil when it breaks down dead stuff A) Producers. B) Consumers. C) Decomposers. D) None of above. Show Answer Correct Answer: C) Decomposers. 16. True or False:Lungs are strong structures A) True. B) False. C) This is not an answer, don't click here. D) This is not an answer, don't click here. Show Answer Correct Answer: B) False. 17. The valve leading from the left atrium into the left ventricle is called? A) Mitral valve. B) Tricuspid valve. C) Aortic valve. D) Pulmonary valve. E) Bicuspid valve. Show Answer Correct Answer: A) Mitral valve. 18. A group of similar cells to perform a specific function form A) Organ. B) Organ system. C) Organism. D) Tissue. Show Answer Correct Answer: D) Tissue. 19. Name the protective covering of heart A) Pleura. B) Pericardium. C) Meninges. D) Visceral membrane. Show Answer Correct Answer: B) Pericardium. 20. The right atrium receives ..... blood from the ..... A) Oxygenated, body. B) Deoxygenated, body. C) Oxygenated, lungs. D) Deoxygenated, lungs. Show Answer Correct Answer: B) Deoxygenated, body. ← 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