image

Learn these curiosities about the human body:

  1. Number of bones: 206
  2. Number of muscles: 639
  3. Number of kidneys: 2
  4. Number of baby teeth: 20
  5. Number of ribs: 24 (12 pairs)
  6. Number of cardiac chambers: 4
  7. Largest artery: Aorta
  8. Normal blood pressure: 120/80 mmHg
  9. Blood pH: 7.4
  10. Number of vertebrae in the spine: 33
  11. Number of neck vertebrae: 7
  12. Number of bones in the average ear: 6
  13. Number of frontal bones: 1
  14. Number of bones in the skull: 22
  15. Number of bones in the chest: 25
  16. Number of bones in the arms: 6
  17. Number of muscles in the human arm: 72
  18. Number of heart pumps: 1 (the heart has 4 chambers, but works as a single pump)
  19. Largest organ: Skin
  20. Largest gland: Liver
  21. Largest cell: Female egg cell
  22. Smallest cell: Sperm
  23. Smallest bone: stapes (middle ear)
  24. First organ transplant: Kidneys
  25. Average length of small intestine: 7 meters
  26. Average length of colon: 1.5 meters
  27. Average weight of newborn: 3 kilograms
  28. Heart rate per minute: 72 beats
  29. Normal body temperature: 37°C (98.6°F)
  30. Average blood volume: 4 to 5 liters
  31. Red blood cell life span: 120 days
  32. White blood cell half-life: 10 to 15 days
  33. Pregnancy period: 280 days (40 weeks)
  34. Number of bones in the human leg: 33
  35. Bones in each wrist: 8
  36. Bones in the hand: 27
  37. Largest endocrine gland: Thyroid
  38. Largest lymphatic organ: Spleen
  39. The largest and strongest bone: Femur
  40. Smallest muscle: Stapedius (middle ear)
  41. Number of chromosomes: 46 (23 pairs)
  42. Number of bones in a newborn: 306
  43. Blood viscosity: 4.5-5.5
  44. Universal donor: Blood type O
  45. Universal recipient: AB blood type
  46. Largest white blood cell: Monocyte
  47. Smallest white blood cell: Lymphocyte
  48. Increased number of red blood cells: Polycythemia
  49. The body's blood bank: Spleen
  50. The River of Life: Blood
  51. Normal blood cholesterol level: 100 mg/dL
  52. Liquid component of blood: Plasma

Thanks for reading!
Dr Roch