This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 596 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 596 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which component of the blood is also called leukocytes? A) Red Blood Cells. B) White Blood Cells. C) Platelets. D) Plasma. Show Answer Correct Answer: B) White Blood Cells. 2. State the two components of the blood and describe the function of one of these components A) WBCs (part of the immune system/defends the body against pathogens), Platelets (helps blood to clot when blood vessels become damaged). B) Artery (Carries oxygenated blood to the body), Vein (Carries deoxygenated blood to the heart and lungs for gas exchange). Show Answer Correct Answer: A) WBCs (part of the immune system/defends the body against pathogens), Platelets (helps blood to clot when blood vessels become damaged). 3. What happens when haemoglobin mixes with oxygen? A) It is decomposed. B) It turns bright red. C) It produces energy. D) It makes antibodies. Show Answer Correct Answer: B) It turns bright red. 4. The blood, the blood vessels and the heart are main parts of ..... system. A) Skeletal. B) Muscular. C) Circulatory. D) None of these. Show Answer Correct Answer: C) Circulatory. 5. Coronary artery disease could be abbreviated by: A) CHF. B) CPR. C) COPD. D) CAD. Show Answer Correct Answer: D) CAD. 6. Blood vessels that are only 1 cell in thickness are called ..... A) Heart. B) Arteries. C) Veins. D) Capillaries. Show Answer Correct Answer: D) Capillaries. 7. An abnormal heart rhythm is called: A) Heart murmur. B) Arrhythmia. C) Cardiac output. D) Conduction defect. Show Answer Correct Answer: B) Arrhythmia. 8. A disease characterized by failure of the blood to clot is? A) Hematophilia. B) Varicose veins. C) Aortic valve insufficiency. D) Hemophilia. Show Answer Correct Answer: D) Hemophilia. 9. The heart sends ..... into the body. A) Light-oiled blood. B) Wasting-life blood. C) Static-ratio blood. D) Oxygen-rich blood. Show Answer Correct Answer: D) Oxygen-rich blood. 10. ..... pick up the carbon dioxide and other waste from the body and return them to the heart. A) Arteries. B) Veins. C) Capillaries. D) Valve. Show Answer Correct Answer: B) Veins. 11. Which of the following statements about the structure of the heart is true? A) The atria have more muscular walls. B) The atria are the largest chambers. C) The ventricles are the largest chambers. D) The ventricles have less muscular walls. Show Answer Correct Answer: C) The ventricles are the largest chambers. 12. The acid in our stomach is powerful enough to break down metals like aluminum, how does our stomach protect itself from the acid within it? A) Our stomachs are coated with a layer of mucus that protects its from the acid. B) Our stomachs are made of a special tissue that is resistant to acid. C) Our stomachs regenerate faster than the acids ability to break down tissue. D) Because I said so. Show Answer Correct Answer: A) Our stomachs are coated with a layer of mucus that protects its from the acid. 13. These form together to make a scab when we have a cut on our skin A) White blood cells. B) Oxygen. C) Platelets. D) Plasma. Show Answer Correct Answer: C) Platelets. 14. Your ..... need more oxygen as you exercise. A) Lungs. B) Heart. C) Feet. D) Muscles. Show Answer Correct Answer: D) Muscles. 15. The pulmonary artery carries blood from..... A) Left atrium. B) Left room. C) Right room. D) Right atrium. Show Answer Correct Answer: C) Right room. 16. What makes up 90% of the plasma in your blood? A) Saliva. B) Gatorade. C) Water. D) Platelets. Show Answer Correct Answer: C) Water. 17. Which word is non-finite verb?"Our salvation lies in realizing our kinship with all of humanity." A) Salvation. B) Lies. C) Realizing. D) Lies / realizing. E) There are no non-finite verbs. Show Answer Correct Answer: C) Realizing. 18. Tiny blood vessels at the ends of veins and arteries that are in contact with the body cells. A) Capillaries. B) Atria. C) Diffusion. D) Plasma. Show Answer Correct Answer: A) Capillaries. 19. What is the role of capillaries when they leave each organ? A) Connect to arteries. B) Pump blood to the lungs. C) Facilitate gas exchange. D) Join to make veins. Show Answer Correct Answer: C) Facilitate gas exchange. 20. What's the next step after the right ventricle? A) Left ventricle. B) Right ventricle. C) Artery. D) Vein. Show Answer Correct Answer: C) Artery. ← 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