This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 420 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 420 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which is the correct statement about platelets? A) They can be produced by a type of blood cell. B) They contain haemoglobin. C) They fight against disease. D) They help the blood to clot. Show Answer Correct Answer: D) They help the blood to clot. 2. The larger of the heart chambers are the ..... A) Atria. B) Ventricles. C) Valves. D) Iron. Show Answer Correct Answer: B) Ventricles. 3. Blood circulates through your body through ..... A) Your skeletal system. B) The nervous system. C) A network of vessels. D) The large intestine. Show Answer Correct Answer: C) A network of vessels. 4. What are the three functions of the blood? A) Transportation, Filteration, and Protection. B) Transportation, Temperature Regulation, and Protection. C) Protection, Temperature Regulation, and Filteration. D) None of above. Show Answer Correct Answer: B) Transportation, Temperature Regulation, and Protection. 5. It is the system that transforms food into energy. A) Endocrine System. B) Immune System. C) Excretory System. D) Digestive System. Show Answer Correct Answer: D) Digestive System. 6. The role of the Respiratory System is to ..... A) Transport blood throughout the body. B) Take in oxygen and release carbon dioxide from the body. C) Breaks down food and distributes nutrients throughout the body. D) Protects the body's vital organs. Show Answer Correct Answer: B) Take in oxygen and release carbon dioxide from the body. 7. As blood moves, it keeps coming back to this A) Lungs. B) Heart. C) Muscles. D) Capillaries. Show Answer Correct Answer: B) Heart. 8. The muscular organ that holds the vocal chords is the ..... A) Epiglottis. B) Pharynx. C) Larynx. D) Trachea. Show Answer Correct Answer: C) Larynx. 9. Which of the following statements about he myocardium is NOT true? A) It's the layer of the heart wall that contracts. B) Composed of cardiac muscle. C) Arranged in thick twisted bundles. D) Secretes pericardial fluid. Show Answer Correct Answer: D) Secretes pericardial fluid. 10. How many loops are there in the circulatory system? A) One. B) Two. C) Three. D) Four. Show Answer Correct Answer: B) Two. 11. The organ that functions to pump blood throughout the body is..... A) Heart. B) Kidney. C) Heart. D) Blood vessel. Show Answer Correct Answer: A) Heart. 12. Which direction does blood travel from the heart? A) Capillaries-Veins-Arteries. B) Veins-Arteries-Capillaries. C) Arteries-Capillaries-Veins. D) Veins-Capillaries-Arteries. Show Answer Correct Answer: C) Arteries-Capillaries-Veins. 13. A heart attack is a condition that most affects the ..... A) Circulatory System. B) Respiratory System. Show Answer Correct Answer: A) Circulatory System. 14. Septum A) Prevents oxygen-rich and oxygen-poor blood from mixing in the heart. B) Carries the blood from the ventricle to the body. C) This type of blood vessel is the thinnest and allows for the transfer of nutrients and oxygen to the cells of the body. D) These are the oxygen carrying cells of the blood. Show Answer Correct Answer: A) Prevents oxygen-rich and oxygen-poor blood from mixing in the heart. 15. The muscles that move your bones are ..... muscles. A) Cardiac. B) Involuntary. C) Smooth. D) Skeletal. Show Answer Correct Answer: D) Skeletal. 16. Is the right and left atrium separated by the interatrial septum or interventricular septum? A) Interventricular septum. B) Interatrial septum. Show Answer Correct Answer: A) Interventricular septum. 17. Blood vessels near the skin become wider to give off heat ..... what kind of job is this? A) Transport. B) Protection. C) Regulation. D) None of above. Show Answer Correct Answer: C) Regulation. 18. Arteries carry blood ..... from/to the heart A) Away. B) Towards. Show Answer Correct Answer: A) Away. 19. The chamber of the heart that receives oxygenated blood as it returns from the lungs is the ..... A) Right atrium. B) Right ventricle. C) Left atrium. D) Left ventricle. Show Answer Correct Answer: C) Left atrium. 20. To make our bones strong and healthy, we should eat foods which are rich in A) Fats. B) Calcium. Show Answer Correct Answer: B) Calcium. ← 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