FACTS ABOUT HUMAN BODY FOR SSC CGL

Here are some Important Facts about Human Body for SSC CGL, RRB and various other competitive exams. Read below the complete Human body Facts.

facts about human body for ssc cgl

Facts about Human Body

  • Length of alimentary canal – 8 metres approx
  • BMR – 1600 K. Cal/day
  • Number of cells in the body – 75 trillion
  • Longest bone – Femur (Thigh Bone)
  • Smallest bone – Ear ossicle, Stapes
  • Weight of brain – 1400 gms
  • Blood volume – 6.8 litres (in 70 kg body)
  • Normal B.P – 120/80 mm Hg
  • Number of R.B.C – a) In male : – 4.5-5.0 million/ cubic mm
    b)In female: -4.0-4.5 million/ cubic mm
  • Life Span of R.B.C – 120 days
  • Normal W.B.C count – 5000 – 10000/ cubic mm
  • Life span of W.B.C – 3 to 4 days
  • D.L.C (Differential leucocyte count) – a)Basophils – 0.5 – 1% b)Eosinophild – 1-3%
    c) Monocytes – 3-8% d) Neutrophils- 40-70% e)Lymphocytes – 2-25%
  • Blood platelets count – 2,00,000-4,00,000/cubic mm
  • Haemoglobin a)In male – 14 – 15.6gm/100 c.c. of blood
  • b)In Female – 11-14 gm/100 c.c. of blood

  • Hb content in body – 500 to 700 gm
  • Universal blood donor – O Rh –ve
  • Universal blood recipient – AB
  • Blood clotting time – 2-5 minutes
  • Average body weight – 70 Kg
  • Normal body Temperature -98.4⁰ F or 37⁰C
  • Breathing rate – 16 -20/minute
  • Dental formula – adult : 2123/2123 = 32; child : 2120/2120 = 22 milk teeth
  • Number of cranial nerves – 12 pairs
  • Number of Spinal nerves – 31 pairs
  • Largest Endocrine gland – Thyroid
  • Gestation Period – 9 months (253-266 days)
  • Normal Heart beat – 72-75/minute
  • Largest gland – Liver
  • Largest muscle in the body – Gluteus maximus (Buttock muscle)
  • Largest smooth muscle – Uterus of pregnant woman
  • Smallest muscle in the body – Stapedius
  • Largest artery – Abdominal aorta
  • Largest vein – Inferior venacava
  • Largest W.B.C – Monocyte
  • Smallest W.B.C – Lymphoyte
  • Greatest regeneration power – In liver
  • Longest nerve – Sciatic
  • Longest cell – Neuron (nerve cell)
  • Menstrual cycle – 28 days
  • Menopause – 45-50 days
  • Minimum regeneration power – in brain cells
  • Minimum distance for proper vision – 25 cm
  • Type of Placenta – Haemochorial (Chorioallantoic)
  • Pulse rate – 72/minute
  • Volume of semen – 2-4 ml/ejaculation
  • Normal sperm count – 200 -350 million/ejaculation
  • ESR(normal Erythrocyte sedimentation rate) – 4.10 min/hour
  • Thinnest skin – Conjunctiva
  • pH of gastric Juice – 1.4
  • pH of Urine – 6.0
  • pH of Blood – 7.35-7.45

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