Some Important Facts of Human Body
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Some Important Facts of Human Body
| Length of Alimentary Canal | Approximately 8 metres |
| BMR (Basal Metabolic Rate) | 1600 K. Cal / day |
| Number of Cells in 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 - 1000 / cubic mm |
| Life Span of W.B.C | 3 - 4 days |
| D.L.C. (Differential Leucocyte Count) | (a) Basophils : 0.5 - 1% (b) Eosinophils : 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 - 15.6 gm / 100 c.c. of blood (b)In Female : 11 - 14 gm / 100 c.c. of blood |
| Hb Content in Body | 500 - 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 | 98.4° F or 37° C |
| 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 | Lymphocyte |
| Greatest Regeneration Power | In liver |
| Longest Nerve | Sciatic |
| Longest Cell | Neuron (Nerve Cell) |
| Menstrual Cycle | 28 days |
| Menopause Age | 45 - 50 Years |
| 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 |
| FSR (normal Erythrocyte Sedimentation rate) | 4 - 10 min / hr |
| Thinnest Skin | Conjunctiva |
| pH of Gastric Juice | 1.4 |
| pH of Urine | 6.0 |
| pH of Blood | 7.35 - 7.45 |
| pH of Bile | 7.5 |
| pH of Pancreatic Juice | 8.5 |
| Total Number of Muscles in the Body | 639 |
| Total Number of Bones in the Body | 206 |
| Largest Organ of Human Body | Skin |
Important Facts of Human Body – Facts About Human Body Parts – Largest Organ
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