This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 508 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 508 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. An infection in the body might result in a sudden A) Decrease in the activity of antigens produced by the mitochondria. B) Decrease in the amount of DNA present in the nuclei of cells. C) Increase in the activity of white blood cells. D) Increase in the number of red blood cells. Show Answer Correct Answer: C) Increase in the activity of white blood cells. 2. Arteries carry oxygen rich blood ..... the heart A) Toward. B) Away from. Show Answer Correct Answer: B) Away from. 3. Hemophilia A) Inherited disease that occurs mostly in males but can be carried by females.(lack of plasma protein required for blood clotting. B) Malignant (cancer) disease of the bone marrow or lymph tissue.(results in high numbers of immature white blood cells. C) Inflammation of a vein. D) Dilated, swollen veins that have lost elasticity and cause stasis (decreased blood flow). Show Answer Correct Answer: A) Inherited disease that occurs mostly in males but can be carried by females.(lack of plasma protein required for blood clotting. 4. Thrombocytes A) RBCs. B) WBCS. C) Plasma. D) Platelets. Show Answer Correct Answer: D) Platelets. 5. Connects the CNS to muscles, organs, and skin; Helps coordinate movements and behaviors A) Peripheral Nervous System (PNS). B) Central Nervous System (CNS). C) Autonomic System. D) Somatic System. Show Answer Correct Answer: A) Peripheral Nervous System (PNS). 6. Vasodilation is used when A) You are too warm. Blood vessels move closer to the surface. B) You are too warm. Blood vessels move further from the surface. C) You are too cold. Blood vessels move closer to the surface. D) You are too cold. Blood vessels move further from the surface. Show Answer Correct Answer: A) You are too warm. Blood vessels move closer to the surface. 7. What do veins have that capillaries and arteries do not? A) Blood. B) Oxygen. C) Valves. D) Cells. Show Answer Correct Answer: C) Valves. 8. Leukocyte A) Red blood cell. B) White blood cell. C) Serum. D) Platelet. Show Answer Correct Answer: B) White blood cell. 9. This valve keeps blood from being squeezed back to the atrium as it fills the right ventricle. A) Tricuspid valve. B) Septum. C) Myocardium. D) Semilunar valve. Show Answer Correct Answer: A) Tricuspid valve. 10. The respiratory pigment that attaches oxygen to the erythrocyte is A) Bilirubin. B) Chlorophyll. C) Haemoglobin. D) Melanin. Show Answer Correct Answer: C) Haemoglobin. 11. You have more ..... in your body than any other blood vessel and brings blood close to every body cell. A) Artery. B) Capillaries. C) Veins. D) None of above. Show Answer Correct Answer: B) Capillaries. 12. The dome shape muscle for breathing at the bottom of the lungs. A) Bronchi. B) Alveoli. C) Trachea. D) Diaphragm. Show Answer Correct Answer: D) Diaphragm. 13. Which part of the brain controls reflexes? A) Cerebrum. B) Cerebellum. C) Brain stem. D) Spinal cord. Show Answer Correct Answer: C) Brain stem. 14. What part of blood which is donut shaped is responsible for carrying oxygen and carbon dioxide to body cells? A) Red Blood Cells. B) White Blood Cells. C) Platelets. D) Plasma. Show Answer Correct Answer: A) Red Blood Cells. 15. How do eating lipids improve body A) Long term energy that can be stored for later. B) Short term energy produced during CR. C) Structure is animals(muscles) during growth and repair. D) None of above. Show Answer Correct Answer: A) Long term energy that can be stored for later. 16. Blood flows in the following sequence in the heart:Superior vena cava/Inferior vena cava, right atrium, tricuspid valve, right ventricle, pulmonary valve, pulmonary artery, lungs, pulmonary vein, left atrium, mitral valve, left ventricle, aortic valve, aorta A) True. B) False. Show Answer Correct Answer: A) True. 17. It is referred to as the river of life. A) Blood. B) Heart. C) Lungs. D) Oxygen. Show Answer Correct Answer: A) Blood. 18. Irregular eating makes too much gastric acid. The disease happened because of this condition is called ..... A) Gastritis. B) Appendicitis. C) Bronchitis. D) Osteoporosis. Show Answer Correct Answer: A) Gastritis. 19. Main blood vein leading to the heart A) Aorta. B) Atria. C) Pulmonary trunk. D) Diastole. Show Answer Correct Answer: A) Aorta. 20. This component of the blood protects the body from infections. A) Plasma. B) RBC. C) WBC. D) Platelets. Show Answer Correct Answer: C) WBC. ← 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