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Blood Circulation in Human Body

1 Marks Question

  1. What is vein?
  2. The blood vessel which carries blood from various parts of the body to the heart is called the vein.
  3. What is blood pressure?
  4. The force exerted by the flowing blood on the wall of blood vessels is called blood pressure.
  5. Write the main function of erythrocytes, leucocytes and thrombocytes.
  6. The main function of erythrocytes (RBC) is it transport O2 and CO2 in the blood, leucocytes (WBC) produce antibodies which help fight infections by attacking bacteria, viruses and germs. Similarly, thrombocytes (platelets) cause a blood clot in wounds.
  7. What is the role of pericardial fluid?
  8. The role of pericardial fluid is to protect the heart from injury.
  9. Define systemic circulation.
  10. Systemic circulation is the circulation of blood from heart to different parts of body and vice-versa.
  11. What is the name of instrument which is used to measure blood pressure?
  12. A sphygmomanometer is the name of instrument which is used to measure blood pressure.
  13. What is anemia?
  14. Anemia is a condition in which there is a deficiency of red cells in the blood, resulting in tiredness even after a short walk.
  15. Which part of the human heart receives impure blood and which part receives pure blood?
  16. Right ventricle receives impure blood and left ventricle receives pure blood.
  17. Where are red blood cells formed? What is the normal blood pressure of human body?
  18. Red blood cells are formed in bone marrow. The normal blood pressure of human body is about 120/80 mm of Hg.
  19. Where is red blood cell formed and destroyed?
  20. Red blood cell is formed in bone marrow and destroyed in spleen and liver.
  21. Write the use of sphygmomanometer?
  22. Sphygmomanometer is used to measure blood pressure.
  23. What is blood?
  24. Blood is the fluid connective tissue that contains plasma and cells or blood corpuscles.
  25. What is human immune system?
  26. The system in the human that protects the body against disease or other potentially damaging foreign bodies is human immune system.
  27. What are the main functions of blood in our body?
  28. Main functions of blood are:
    1. Transporting oxygen and nutrients to the lungs and tissues.
    2. Forming blood clots to prevent excess blood loss.
    3. Carrying cells and antibodies that fight infection. >
    4. Regulating body temperature.
  29. By the help of which factor do RBC absorb oxygen?
  30. By the help of hemoglobin which is red-pigmented protein and contains iron, RBC absorb oxygen.
  31. How long RBC and WBC are tentatively survive?
  32. The life span of RBC is about 90 to 120 days and WBC are about 2 weeks.
  33. Write the difference between blood cell and plasma.
  34. The difference between blood cell and plasma is shown below in table:
    Blood cell Plasma
    It covers 45% of the blood. It covers 55% of the blood.
    RBC transport O2 and CO2 in the blood, WBC produce antibodies which help fight infections by attacking bacteria, viruses, and germs, similarly, platelets cause blood clot in wounds. It regulates the amount of water in the blood.
  35. Write the name of any two valves present in human heart. Name the blood vessel which carry pure blood from lungs to heart.
  36. The name of any two valves present in human heart are bicuspid valve, tricuspid valve. Pulmonary veins carry pure blood from lungs to heart.
  37. What is meant by blood pressure of a man is 130/90 mm of Hg?
  38. Blood pressure of a man is 130/90 mm of Hg means that his/her systolic pressure is 130 mm of Hg and diastolic pressure is 90 mm of Hg.
  39. Write one function of left ventricle and right ventricle of human heart.
  40. Left ventricle provides sufficient force to pump the blood throughout the body and right ventricle pumps the blood to the lungs.
  41. What is meant by heart beat?
  42. The rhythmic contraction and relaxation of the heart is called heart beat.
  43. Which blood cells number is less than average in a person suffering from anemia? Write the name of four valves of the human heart.
  44. Red Blood Cell (RBC) is less than average in a person suffering from anemia. The name of four valves of human heart are tricuspid valve, bicuspid valve, pulmonic valve and aortic valve.
  45. Write the name of nongranular leukocytes.
  46. The name of nongranular leukocytes are Lymphocytes, Monocyte.
  47. What are the preventive measure of uric acid?
  48. The preventive measure of uric acid are:
    1. Avoiding red meat, beans etc.
    2. Taking sufficient water and have regular exercise.
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