Amazing Facts of Human Body

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How much do you know about yourself?

For example-

  • The sound made by necks, backs, knuckles and other joints when they’re cracked is the sound of bubbles popping in the joints’ fluid.
  • A human baby has over 60 more bones than an Adult.
  • Your body has enough iron in it to make a metal nail 3 inches long.

Now here are some of the interesting facts and figures of the Human Body which are important from exam perspective, especially in General Competitions like SSC, Bank, IBPS, RRB, etc.

Note- The article is also very important for medical exams.

S. No.
1.Busiest Organ of the Human BodyHeart
2.Normal Blood Pressure120/80 mm of Hg (mercury)
3.Largest Organ of the BodySkin
4.Fastest Growing tissue in Human BodyHair
5.Tissue that doesn’t receive Oxygen from bloodNail  (Cornea too)
6.Part of the body that cannot heal or repair of its ownTeeth
7.Only joint less bone present in the throat areaHyoid Bone
8.Maximum power of regenerationLiver
9.The minimum power of regenerationSkin
10.Life Span of RBC (Red Blood Cells)120 Days (100-120 days)
S. No.
1.Longest Bone in the Human BodyThe Femur (Thigh Bone)
2.Longest CellNeuron
3.Largest GlandLiver
4.Smallest MusclesGluteus Maximus
5.Smallest BoneStapes
6.Longest NerveSciatic
7.Largest ArteryAorta
8.Largest VeinVena Cava (Interior)
9.Largest Endocrine GlandThyroid Gland
10.Smallest Endocrine GlandPituitary Gland

Read More⇒ Nitrogen Cycle- Definition and Steps

S. No.
1.pH of Stomach1.4
2.pH of Blood7.4
3.pH of Urine6.0
4.pH of Pancreatic Juice8.5
5.pH of Saliva7.2
6pH of Bile7.7
7.No. of RBC in Male5 to 5.5 mill per mm³
8.No. of RBC in Female4.5 to mill per mm³
9.Number of Platelets200000 – 400000 per mm³
10.Number of WBC5000 to 10000 per mm³
11.Percentage of Haemoglobin in Male14 to 16 g per cc
12.Percentage of Haemoglobin in Female12 – 14 per cc

Note – The data given above are the average values, it may vary from text to text. From the exam point consider the nearby values.

S. No.  
1.No. of Cranial Nerves12 Pairs
2.Total Number of Bones206 (Male) & 208 (Female)
3.Total Number of Muscles639
4.Universal Blood Donor GroupGroup O (or Blood O negative)
5.Universal Blood Acceptor GroupGroup AB (or Blood AB positive)
6.Number of Spinal Nerves31 Pairs
7.Body Temperature98.4 Fahrenheit
8.Rate of Breathing16 to 20 per minutes
9.Weight of Brain1400 gram
10.Rate of Heartbeats72 per minute

Read More⇒ Biological Classification of Organisms