Human Body Facts
🔸 Largest and strongest Bone in the body:
➖ Femur (thigh bone)
🔸 Smallest Bone in the body
➖ Stapes in ear
🔸 Number of Cells in the body
➖ 75 trillion
🔸 Volume of Blood in the body
➖ 6 litres (in 70 kg body)
🔸 Number of Red Blood Cells(R.B.C.)
➖ In male: 5 to 6 million/cubic mm
➖ In female: 4 to 5 million/cubic mm
🔸 Life span of Red Blood Cells(R.B.C.)
➖ 100 to 120 days
🔸 Life span of White Blood Cell(W.B.C.)
➖ 3-4 days
🔸 Normal White Blood Cell(W.B.C.) count
➖ 5000-10000/cubic mm
🔸 Time taken by R.B.C. to complete one cycle of circulation:
➖ 20 seconds
🔸 Other name of Red Blood Cell (R.B.C.):
➖ Erythrocytes
🔸 Largest White Blood Cells:
➖ Monocytes
🔸 Smallest White Blood Cells:
➖ Lymphocyte
🔸 Who discovered Blood Group:
➖ Karl Landsteiner
🔸 Blood Platelets count:
➖ 150,000 - 400,000 platelets per micro litre
🔸 Haemoglobin (Hb):
➖ In male: 14-15 gm/100 c.c. of blood
➖ In female: 11-14 gm/100 c.c. of blood
🔸 Hb content in body:
➖ 500-700 gm
🔸 pH of Urine:
➖ 6.5-8
🔸 pH of Blood:
➖ 7.36-7.41
🔸 Volume of Semen:
➖ 2-5 ml/ejaculation
🔸 Pulse rate:
➖ 72 per minute
🔸 Thinnest Skin:
➖ Eyelids
🔸 Weight of Heart:
➖ 200-300 gm
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