This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System – Quiz 73 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 73 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Prevents backfloe into the right atrium A) Pulmonary semilunar valve. B) Aortic semilunar valve. C) Bicuspid valve. D) Tricuspid valve. Show Answer Correct Answer: D) Tricuspid valve. 2. Which of the following are the blood vessels that have valves? A) Veins. B) Arteries. C) Capillaries. D) None of above. Show Answer Correct Answer: A) Veins. 3. Maria (type B+) and Jacob (type B-) are sister and brother. Can Jacob receive Maria's blood in the event of an emergency? A) Yes. B) No. Show Answer Correct Answer: B) No. 4. Blood vessels that carry blood to the heart are known as ..... A) Veins (light purple). B) Arteries (blue). C) Capillaries (red). D) None of above. Show Answer Correct Answer: A) Veins (light purple). 5. The top two chambers of the heart A) Valves. B) Atria. C) Pulmonary Cirvulation. D) Ventricles. E) Septum. Show Answer Correct Answer: B) Atria. 6. What is organ X ？ A) Stomach. B) Heart. C) Lung. D) Kidney. Show Answer Correct Answer: B) Heart. 7. Which component of blood is mostly water? A) Plasma. B) White blood cells. C) Platelets. D) Red blood cells. Show Answer Correct Answer: A) Plasma. 8. Heart rate is ..... A) The number of times the heart beats in a 1 minute. B) The same throughout the day. C) The number of times the heart beats in 10 minutes. D) The number of times the heart beats in 1 second. Show Answer Correct Answer: A) The number of times the heart beats in a 1 minute. 9. What would an example of something found in plasma? A) Oxygen. B) Carbon dioxide. C) Glucose. D) Photosynthesis. Show Answer Correct Answer: B) Carbon dioxide. 10. ....is characterized by abnormally high or abnormally low heart rate. A) Heart attack. B) Cardiac arrhythmia. C) Stroke. D) None of above. Show Answer Correct Answer: B) Cardiac arrhythmia. 11. The pacemaker adjusts the heart rate to match the amount of ..... that is needed. A) Oxygen. B) Carbon dioxide. Show Answer Correct Answer: A) Oxygen. 12. What is number 2 labelling? A) Right ventricle. B) Right atrium. C) Left ventricle. D) Left atrium. Show Answer Correct Answer: A) Right ventricle. 13. Chemical digestion happens because of ..... A) Teeth. B) Bile. C) Peristalsis. D) Enzymes. Show Answer Correct Answer: D) Enzymes. 14. Some students observing a classroom device being used, noticed the below energy transformations. Electrical $\rightarrow$ Mechanical $\rightarrow$ Sound Which device were the students most likely observing? A) A triple beam balance measuring an object's mass. B) A pencil sharpener plugged into a wall outlet. C) A projector displaying a diagram on the screen. D) A working flashlight used to light up a dark corner. Show Answer Correct Answer: B) A pencil sharpener plugged into a wall outlet. 15. Needed for the clotting of blood. A) WHITE BLOOD CELLS. B) PLATELETS. C) RED BLOOD CELLS. D) PLASMA. Show Answer Correct Answer: B) PLATELETS. 16. Systematic circulation carries the blood to ..... A) The lungs. B) The body. C) The heart. D) None of above. Show Answer Correct Answer: B) The body. 17. Which is a function of the circulatory system? A) Moves blood throughout the body. B) Let's you breathe. C) Hold a person upright. D) Sends and receives info about what is happening in the body. Show Answer Correct Answer: A) Moves blood throughout the body. 18. Mr. Lee is really cool. A) True. B) False. Show Answer Correct Answer: A) True. 19. How are arteries and veins different? A) The veins carry blood away from the heart while arteries carry blood to the heart. B) The arteries carry blood away from the heart while veins carry blood to the heart. Show Answer Correct Answer: B) The arteries carry blood away from the heart while veins carry blood to the heart. 20. These cells are in charge of blood clots and repairing tissue where the skin is cut. A) Red Blood Cells. B) Plasma. C) Platelets. D) White Blood Cells. Show Answer Correct Answer: C) Platelets. 21. The superior and inferior vena cava ..... A) Are large veins that return oxygen-poor blood from the body to the heart. B) Help fight infection. C) Are arteries that return oxygen-poor blood from the body to the heart. D) Are capillaries that return oxygen-rich blood from the body to the lung. Show Answer Correct Answer: A) Are large veins that return oxygen-poor blood from the body to the heart. 22. Medical procedure using sonographic sound to analyze the size, shape, and movement of structures inside the heart is called A) Echocardiography. B) Holter monitor. C) Computed tomography. D) Electrocardiogram. Show Answer Correct Answer: A) Echocardiography. 23. Venules are the smallest of these (may have multiple answers) A) Veins. B) Capillaries. C) Alveoli. D) Arteries. Show Answer Correct Answer: A) Veins. 24. Chronic obstructive pulmonary disease would be abbreviated by: A) COPD. B) CAD. C) CHF. D) CPR. Show Answer Correct Answer: A) COPD. 25. Vein bringing blood from anterior part of your body A) Superior vena cava. B) Pulmonary artery. C) Inferior vena cava. D) Pulmonary vein. Show Answer Correct Answer: A) Superior vena cava. 26. High light intensity favours high rate of transpiration because ..... A) High light intensity favours high rate of diffusion. B) High light intensity favours high rate of chlorophyl activation. C) High light intensity favours high rate of photosynthesis. D) High light intensity favour high rate of evaporation. Show Answer Correct Answer: A) High light intensity favours high rate of diffusion. 27. The below statement regarding valves in heart is not correct. హృదయ కవాటాలకు సంబంధించి సరైన వాక్యము కానిది. A) Bidirectional in function. Performs bidirectional function. B) Embedded in apertures of heart. C) Unidirectional in function. ఏకా దిశ కవాటాలు. D) Valves are flap like structures. Show Answer Correct Answer: A) Bidirectional in function. Performs bidirectional function. 28. Which system protects the body from pathogens? A) Circulatory. B) Immune. C) Nervous. D) Skeletal. Show Answer Correct Answer: B) Immune. 29. Inhale!!!!Your lungs are ..... air (oxygen). A) Taking in. B) Letting out. Show Answer Correct Answer: A) Taking in. 30. Haemoglobin contains which mineral: A) Sodium. B) Gold. C) Iron. D) Iodine. Show Answer Correct Answer: C) Iron. 31. Https://youtu.be/JA0Wb3gc4mEWatch the video and answer the following question. The oxygenated blood enter from the superior vena cava and the inferior vena cava and enters into the left atrium. A) False. B) True. Show Answer Correct Answer: A) False. 32. How long does the circulatory system stretch up to in miles? A) 21, 000. B) 32, 000. C) 60, 000. D) 66, 000. E) 24, 000. Show Answer Correct Answer: D) 66, 000. 33. A patient with anemia will present signs and symptoms of paleness, fatigue, unexplained weakness, and elevated hemoglobin and iron levels. A) True. B) False. Show Answer Correct Answer: B) False. 34. Valves keep blood from flowing backwards in the heart. A) TRUE. B) FALSE. Show Answer Correct Answer: A) TRUE. 35. The lower chambers of the heart are known as ..... A) Atria. B) Ventricles. C) Valves. D) Septum. Show Answer Correct Answer: B) Ventricles. 36. Which valve allows blood to flow from the right atrium to the right ventricle? A) Pulmonary valve. B) Mitral valve. C) Tricuspid valve. D) Aortic valve. Show Answer Correct Answer: C) Tricuspid valve. 37. Vessels that carry high pressure blood A) Arteries. B) Capillaries. C) Veins. D) None of above. Show Answer Correct Answer: A) Arteries. 38. Shortness of breath can be a sign of heart issues A) True. B) False. Show Answer Correct Answer: A) True. 39. What is the process of blood circulation? A) Lungs to right atrium to right ventricle to body cells to left atrium to left ventricle to lungs. B) Lungs to left ventricle to left atrium to body cells to right ventricle to right atrium to lungs. C) Lungs to right ventricle to right atrium to body cells to left ventricle to left atrium to lungs. D) Lungs to left atrium to left ventricle to body cells to right atrium to right ventricle to lungs. Show Answer Correct Answer: D) Lungs to left atrium to left ventricle to body cells to right atrium to right ventricle to lungs. 40. Which blood vessel has the thinnest walls? A) Vein. B) Capillary. C) Venule. D) Artery. Show Answer Correct Answer: B) Capillary. 41. Which part of the blood carries oxygen to your body? A) Red blood cells. B) White blood cells. C) Plasma. D) Platelets. Show Answer Correct Answer: A) Red blood cells. 42. When the atria contract, blood is squeezed into ..... A) The veins. B) The ventricles. C) The arteries. D) The valves. Show Answer Correct Answer: B) The ventricles. 43. Each side has ..... chambers and in total our heart ..... chambers. A) 2, 4. B) 3, 6. C) 1, 2. D) 4, 8. Show Answer Correct Answer: A) 2, 4. 44. The doors which only open one way in the heart are called ..... A) Doors. B) Valves. C) Passageways. D) None of above. Show Answer Correct Answer: B) Valves. 45. Which substance in the blood helps coordinate activities in the body-such as responding to stress or controlling how all cells in the body take in or release sugar? A) Oxygen. B) Metabolic wastes. C) Hormones. D) Nutrients. Show Answer Correct Answer: C) Hormones. 46. Blood ..... waste from all parts of the body. A) Collects. B) Distributes. C) Stores. D) All of these. Show Answer Correct Answer: A) Collects. 47. Where are red blood cells made in our bodies? A) Capillaries. B) Bone Marrow. C) Tendons. D) Cartlidge. Show Answer Correct Answer: B) Bone Marrow. 48. The left side of the heart contains blood that is A) Rich in carbon dioxide. B) Poor in oxygen. C) Poor in carbon dioxide. D) Rich in oxygen. Show Answer Correct Answer: D) Rich in oxygen. 49. What happens during ventricular diastole? A) All semilunar valves open. B) The atrio-ventricular valves open. C) The pressure in the atria rises above the pressure in the ventricles. D) The pressure in the left atrium rises more than the pressure in the right atrium. Show Answer Correct Answer: C) The pressure in the atria rises above the pressure in the ventricles. 50. Lowest pressure against the blood vessels of the body. Measures between contractions A) Hypotension. B) Hypertension. C) Diastolic pressure. D) Systolic pressure. Show Answer Correct Answer: C) Diastolic pressure. 51. What is the main artery leaving the heart called? A) Aorta. B) Capillary. C) Vena Cava. D) Vein. Show Answer Correct Answer: A) Aorta. 52. Increase in wind speed will not increase the rate of stomatal transpiration in which of the following situations? A) All plants in night time. B) Plants whose stomata have closed. C) Plants with needle like leaves. D) Plants with sunken stomata. Show Answer Correct Answer: A) All plants in night time. 53. Which is/are characteristics of vein? A) Small lumen. B) Thick walls. C) Elastic walls. D) Have valves. Show Answer Correct Answer: D) Have valves. 54. ..... helps clot blood. A) Red blood cells. B) White blood cells. C) Lymph nodes. D) Platelets. Show Answer Correct Answer: D) Platelets. 55. Olivia and Charlotte are learning about the circulatory system. They want to know where the blood flows through to reach every body cell. Can you help them? A) Veins. B) Lymphatic vessels. C) Arteries. D) Capillaries. Show Answer Correct Answer: D) Capillaries. 56. Veins that empty blood from the lungs into the upper left heart chamber A) Inferior Vena Cava. B) Veins. C) Superior Vena Cava. D) Pulmonary Veins. Show Answer Correct Answer: D) Pulmonary Veins. 57. Which of the following "cause-and-effect" statements is true? A) An arrhythmia causes an aneurysm. B) Varicose veins cause an aneurysm. C) Leukemia causes phlebitis. D) Arteriosclerosis causes hypertension. Show Answer Correct Answer: D) Arteriosclerosis causes hypertension. 58. Which valve separates the left atrium and ventricle? A) Tricuspid valve. B) Bicuspid valve. C) Aortic valve. D) None of above. Show Answer Correct Answer: B) Bicuspid valve. 59. Saclike swelling in the wall of a vessel usually an artery A) Aneurysm. B) TIA. C) CVA. D) Heart murmur. Show Answer Correct Answer: A) Aneurysm. 60. Which side of the heart deals with deoxygenated blood? A) Left. B) Right. Show Answer Correct Answer: B) Right. ← PreviousNext →Related QuizzesScience QuizzesGeneral Knowledge QuizzesCirculatory System Quiz 1Circulatory System Quiz 2Circulatory System Quiz 3Circulatory System Quiz 4Circulatory System Quiz 5Circulatory System Quiz 6Circulatory System Quiz 7Circulatory System Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books