Important Facts related to Human Body for SSC Exams
Here are some very Important Facts related to Human Body which will be very helpful to improve your score in GA section of SSC Exams.The human body is an incredibly complex and intricate system and it still confuses researchers regularly despite thousands of years of medical knowledge. As a result, it shouldn't be a surprise that even body parts we deal with everyday have unexpected facts and explanations behind them. So, below is a list of Some Important Facts related to Human Body which you should remember for SSC Exams.
Some Important Facts related to Human Body
- 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
- Normal Sperm Count: 250-400 million/ejaculation
- Menstrual cycle: 28 days
- Menopause age: 45-50 years
- Blood clotting time: 3-5 minutes
- Weight of Brain: 1300-1400 gm in human adult
- Normal Blood Pressure (B.P.): 120/80 mm Hg
- Universal blood donor: O
- Universal blood recipient: AB
- Average body weight: 70 kg
- Normal body temperature: 37 degree celsius
- Breathing Rate at rest: 12-16/minute
- Number of Spinal Nerves: 31 pairs
- Largest Endocrine Gland: Thyroid gland
- Gestation period: 40 weeks or 9 calendar months
- Normal Heart Beat at rest: 72 beats per minute
- Largest Gland: Liver
- Largest Muscle in the body: Gluteus Maximus or Buttock Muscle
- Smallest Muscle in the body: Stapedius
- Largest Artery: Aorta
- Largest Vein: Inferior Vena Cava
- Largest and longest Nerve: Sciatic Nerve
- Longest Cell: Neurons (nerve cells)
- Minimum distance for proper vision: 25 cm
- Pulse rate: 72 per minute
- Thinnest Skin: Eyelids
- Weight of Heart: 200-300 gm
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