Important Facts About Human BodyÂ
🔸 Normal Sperm Count:
âž– 250-400 million/ejaculation
🔸 Menstrual cycle:
âž– 28 days
🔸 Menopause age:
âž– 45-50 years
🔸 Blood clotting time:
âž– 3-5 minutes
🔸 Weight of Brain:
âž– 1300-1400 gm in human adult
🔸 Normal Blood Pressure (B.P.):
âž– 120/80 mm Hg
🔸 Average body weight:
âž– 70 kg
🔸 Normal body temperature:
âž– 37 degree celsius
🔸 Breathing Rate at rest:
âž– 12-16/minute
🔸 Number of Spinal Nerves:
âž– 31 pairs
🔸 Largest Endocrine Gland:
âž– Thyroid gland
🔸 Gestation period:
âž– 40 weeks or 9 calendar months
🔸 Normal Heart Beat at rest:
âž– 72 beats per minute
🔸 Largest Gland:
âž– Liver
🔸 Largest Muscle in the body:
âž– Gluteus Maximus or Buttock Muscle
🔸 Smallest Muscle in the body:
âž– Stapedius
🔸 Largest Artery:
âž– Aorta
🔸 Largest Vein:
âž– Inferior Vena Cava
🔸 Largest and longest Nerve:
âž– Sciatic Nerve
🔸 Longest Cell:
âž– Neurons (nerve cells)
🔸 Minimum distance for proper vision:
âž– 25
🔸 Largest and strongest Bone in the body:
âž– Femur (thigh bone)
🔸 Smallest Bone in the body
âž– Stapes in ear
🔸 Number of Cells in the body
âž– 75 trillion
🔸 Volume of Blood in the body
âž– 6 litres (in 70 kg body)
🔸 Number of Red Blood Cells(R.B.C.)
âž– In male: 5 to 6 million/cubic mm
âž– In female: 4 to 5 million/cubic mm
🔸 Life span of Red Blood Cells(R.B.C.)
âž– 100 to 120 days
🔸 Life span of White Blood Cell(W.B.C.)
âž– 3-4 days
🔸 Normal White Blood Cell(W.B.C.) count
âž– 5000-10000/cubic mm
🔸 Time taken by R.B.C. to complete one cycle of circulation:
âž– 20 seconds
🔸 Other name of Red Blood Cell (R.B.C.):
âž– Erythrocytes
🔸 Largest White Blood Cells:
âž– Monocytes
🔸 Smallest White Blood Cells:
âž– Lymphocyte
Who discovered Blood Group:
âž– Karl Landsteiner
🔸 Blood Platelets count:
âž– 150,000 - 400,000 platelets per micro litre
🔸 Haemoglobin (Hb):
âž– In male: 14-15 gm/100 c.c. of blood
âž– In female: 11-14 gm/100 c.c. of blood
🔸 Hb content in body:
âž– 500-700 gm
🔸 pH of Urine:
âž– 6.5-8
🔸 pH of Blood:
âž– 7.36-7.41
🔸 Volume of Semen:
âž– 2-5 ml/ejaculation
🔸 Pulse rate:
âž– 72 per minute
🔸 Thinnest Skin:
âž– Eyelids
🔸 Weight of Heart:
âž– 200-300 gm
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