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biology 19 human circulatory system
Page 1
Q.1. The discovery of blood circulation was done by?
Q.2. Which are the four parts of circulatory system?
Q.3. Which membrane holds heart in chest cavity and protect it from infections?
Q.4. What is the approximate weight of heart?
Q.5. How many chambers are there in human heart?
Q.6. Anterior side of heart contains?
Q.7. Posterior side of heart contains?
Q.8. Tricuspid valve in heart is located between?
Q.9. Bicuspid valve in heart is located between?
Q.10. The blood vessel carrying the blood from body towards the heart is known as?
Q.11. Which blood vessel contains impure blood i.e. carbon dioxide mixed blood?
Q.12. Which is the only vein, which always carry pure blood?
Q.13. Pulmonary vein carries the blood from?
Q.14. The blood vessel carrying the blood from the heart towards the body is known as?
Q.15. Which blood vessel always carry pure blood i.e. oxygen mixed blood?
Q.16. Which is the only artery, which carry impure blood?
Q.17. Pulmonary artery carries the blood from?
Q.18. Which part of the heart contains impure blood?
Q.19. Which part of the heart contains pure blood?
Q.20. The arteries carrying blood to the muscles of the heart are called?
Q.21. Any type of hindrance in coronary arteries cause?
Q.22. Which type of blood circulation do mammals have?
Q.23. How many times blood have to cross heart, in mammals, before circulating throughout the body?
Q.24. Which auricle receive impure blood from the body?
Q.25. Impure blood from right auricle goes into?
Q.26. Pulmonary artery receive blood from?
Q.27. Which artery brings blood to the lungs for removal of carbon dioxide?
Q.28. After carbon dioxide is removed from the blood by the lungs, the blood flows into?
Q.29. Left auricle of the heart receives blood from?
Q.30. From Pulmonary vein blood goes into?
Q.31. The purified blood from left ventricle goes into?
Q.32. Which is the largest artery in human body?
Q.33. One cycle of circulation of blood in the body is known as?
Q.34. What is known as pace maker of the heart?
Q.35. Sino auricular node is situated in?
Q.36. Which node serve as relay station of the heart?
Q.37. Which electric device, in the chest of a patient, generate cardiac impulses if sino auricular node of the patient is damaged or defective?
Q.38. Systole and diastole of the heart are collectively known as?
Q.39. How many times do human heart beat in a minute?
Q.40. How much blood is pumped by heart in a single heartbeat?
Q.41. Which device is used to measure blood pressure?
Q.42. Which hormones control heartbeat?
Q.43. The light yellow liquid found in the intracellular intervals between different tissues and cells is known as?
Q.44. Which liquid has composition like blood plasma in which nutrient, oxigen and various other substances are present?
Q.45. The corpuscles found in lymph are known as?
Q.46. Lymphocyte is one of the subtypes of?
Q.47. Lymph flows in which direction?
Q.48. _______ present in lymph helps to prevent the body from disease by killing harmful bacteria?
Q.49. Which node work as a filter in human body?
Q.50. _______ helps in healing the wounds?
Q.51. _______ circulates different material from tissues to veins?


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