This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 280 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 280 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which enzyme initiates blood coagulation? Dr. Skanda What is the enzyme that initiates me? A) Philloquinone Phylloquinone. B) Thrombin Thrombin. C) Thrombokinase Thrombo Kinase. D) Fibrinogen Fibrinogen. Show Answer Correct Answer: C) Thrombokinase Thrombo Kinase. 2. Arteries carry pure blood and are A) Superficial. B) Deep-seated. C) Have valves. D) None of above. Show Answer Correct Answer: B) Deep-seated. 3. Blood goes from the right ventricle to the A) Pulmonary artery. B) Pulmonary vein. C) Right atrium. D) Left ventricle. Show Answer Correct Answer: A) Pulmonary artery. 4. Transpiration depends on the below which factors? Bhasppotsekam depends on which of the following factors? A) Temperature. B) Moisture in air. C) Availability of water నీటి లభ్యత. D) All the above పైవన్నీ. Show Answer Correct Answer: D) All the above పైవన్నీ. 5. What do we call the muscle responsible for inhaling (breathing in) and exhaling (breathing out)? A) Diaphragm. B) Lungs. C) Trachea. D) Alveoli. Show Answer Correct Answer: A) Diaphragm. 6. Name the largest artery in the body. It carries blood from the heart to all of the body's cells. A) Vena cava. B) Aorta. C) Pulmonary artery. D) Pulmonary vein. Show Answer Correct Answer: B) Aorta. 7. Which type of muscle found in your digestive system? A) Rectus abdominis. B) Cardiac muscle. C) Smooth muscle. D) Stomach muscles. Show Answer Correct Answer: C) Smooth muscle. 8. What is the primary function of hemostasis? A) To carry oxygen around the body. B) To stop bleeding after blood vessel walls are injured. C) To fight off viral infections after they have entered the blood stream. D) To increase blood flow during aerobic activity. Show Answer Correct Answer: B) To stop bleeding after blood vessel walls are injured. 9. Which is a characteristic of most single-celled organisms? A) They have a complex nervous system. B) They contain several different types of cells. C) They perform all life processes. D) They have a circulatory and a respiratory system. Show Answer Correct Answer: C) They perform all life processes. 10. Where are lymph nodes commonly found near the surface of the body? A) In the chest and abdomen. B) In the neck or groin. C) In the lower back. D) In the arms and legs. Show Answer Correct Answer: B) In the neck or groin. 11. Vessels that carry deoxygenated blood back to the heart. A) Capillaries. B) Arteries. C) Immune. D) Veins. Show Answer Correct Answer: D) Veins. 12. What carries waste (trash) in the circulatory system? A) Blood. B) Brain. C) Feet. D) None of above. Show Answer Correct Answer: A) Blood. 13. Which is correct statement for leukemia/leukaemia? A) It is known as high blood pressure. B) It occurs when the amount of red blood cells in our body is low. C) It may be cause by a diet with too much fat. D) It occurs when white blood cells multiply abnormally. Show Answer Correct Answer: D) It occurs when white blood cells multiply abnormally. 14. Releases chemicals which reduce inflammation and attack parasites A) Eosinophil. B) Monocyte. C) Thrombocyte (platelets). D) Plasma. E) Plasma. Show Answer Correct Answer: A) Eosinophil. 15. Which materials make our blood red? A) Oxygen, nutrients, iron. B) Iron, oxygen, hemoglobin. C) Oxygen, water, nutrients. D) Iron, hemoglobin, waste products. Show Answer Correct Answer: B) Iron, oxygen, hemoglobin. 16. Supplies the liver. A) Common hepatic artery. B) Left subclavian artery. C) Left common carotid artery. D) Esophageal arteries. Show Answer Correct Answer: A) Common hepatic artery. 17. Which of the following are NOT blood vessels? A) Lymph vessels. B) Arteries. C) Veins. D) Capillaries. Show Answer Correct Answer: A) Lymph vessels. 18. Controls the spinal cord and involuntary movements A) Cerebrum. B) Cerebellum. C) Medulla. D) None of above. Show Answer Correct Answer: C) Medulla. 19. The left side of the heart transports ..... blood. A) Deoxygenated. B) Oxygenated. C) Both deoxygenated and oxygenated. D) None of above. Show Answer Correct Answer: B) Oxygenated. 20. A patient having numerous white blood cells would indicate a possible: A) Hemolysis. B) Agglutination. C) Erythropoiesis. D) Infection. Show Answer Correct Answer: D) Infection. ← 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