This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 174 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 174 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Muscle of the heart A) Myocardium. B) Epicardium. C) Endocardium. D) Inferior vena cava. Show Answer Correct Answer: A) Myocardium. 2. Blood vessels that move TOWARD the heart A) Arteries. B) Plasma. C) Veins. D) Ventricles. Show Answer Correct Answer: C) Veins. 3. When your blood does not have oxygen (it may also contain Carbon Dioxide), it is what color A) Red. B) Green. C) Blue. D) Purple. Show Answer Correct Answer: C) Blue. 4. The instrument that is used to measure blood pressure. A) Stethoscope. B) Sphygmomanometer. C) Ultrasound. D) ECG. Show Answer Correct Answer: B) Sphygmomanometer. 5. A patient has the antecubital veins listed below. All the veins are large and easily palpated, but the basilic vein is the most visible. Which one should be chosen for venipuncture? A) Basil. B) Median. C) Median Basilic. D) Median cephalic. Show Answer Correct Answer: B) Median. 6. Red Blood Cells are known as A) Hemoglobin. B) Erythrocytes. C) Leucocytes. D) Thrombocytes. Show Answer Correct Answer: B) Erythrocytes. 7. Choose the correct blood vessels. A) Artery. B) Vein. C) Capillaries. D) All of the above. Show Answer Correct Answer: D) All of the above. 8. What direction does blood flow through veins? A) Into the heart. B) Away from the heart. C) Into and away from the heart. D) Blood does not flow through arteries. Show Answer Correct Answer: A) Into the heart. 9. What is happening during Diastole? A) Ventricles are relaxing. B) Ventricles are contracting. Show Answer Correct Answer: A) Ventricles are relaxing. 10. The organization of the human body from LEAST complex to most complex is: A) Organism $\rightarrow$ Organ Systems $\rightarrow$ Organ $\rightarrow$ Tissue $\rightarrow$ Cells. B) Cells $\rightarrow$ Tissue $\rightarrow$ Organ $\rightarrow$ Organ System $\rightarrow$ Organism. Show Answer Correct Answer: B) Cells $\rightarrow$ Tissue $\rightarrow$ Organ $\rightarrow$ Organ System $\rightarrow$ Organism. 11. What is the pacemaker of the heart? A) Because of the difference. B) Atrial depolarization (contraction). C) Bradycardia. D) Left ventricle. Show Answer Correct Answer: A) Because of the difference. 12. Which system keeps the blood flowing in one direction through the heart? A) Switches. B) One-way valves. C) Pumps. D) Veins. Show Answer Correct Answer: B) One-way valves. 13. When you have ..... it makes the heart work harder A) Small capillaries. B) Aortic valves. C) Atherosclerosis. D) High blood pressure. Show Answer Correct Answer: D) High blood pressure. 14. Which blood vessels send blood to the heart? A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: B) Veins. 15. Atrial septum is more.....than ventricular septum. Atrial fibrillation is greater than ventricular fibrillation. A) Thicker. B) Thinner. C) Similar. D) None is none. Show Answer Correct Answer: B) Thinner. 16. Which is correct statement for hypertension? 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: A) It is known as high blood pressure. 17. What can you infer from the fact that your heart beats faster when you exercise? A) When you exercise, your muscles need more oxygen. B) When you exercise, your cells need more carbon dioxide. C) When you exercise, you feel especially nervous. D) None of above. Show Answer Correct Answer: A) When you exercise, your muscles need more oxygen. 18. What cause the heart sound Lub? A) Opening of the AV valves. B) Closing of the AV valves. C) Opening of the SL Valves. D) Closing of the SL Valves. Show Answer Correct Answer: B) Closing of the AV valves. 19. What is NOT true about sickle cell anaemia? A) Some of the red blood cellsare shaped like sickles. B) It can be detected from a blood sample. C) It is caused by plasmodium. D) Such red blood cells cannot transport enough oxygen. Show Answer Correct Answer: C) It is caused by plasmodium. 20. All veins carry oxygen-poor blood back to the heart, EXCEPT A) The inferior vena cava. B) The superior vena cava. C) The pulmonary veins. D) The blue veins. Show Answer Correct Answer: C) The pulmonary veins. ← 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