Some Important Facts Of Human Body

Some Important Facts of Human Body
Length of alimentary canal Approximately 8 meters
BMR (Basal metabolic rate) 1600 K.cal/day
Number calls 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 5000-10000/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 minutes
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/ minutes
Largest gland Liver
Largest muscles in the body Gluteus maximus (Buttock muscle)
Largest smooth muscle Uterus of pregnant women
Smallest muscles 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 cell
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

In 24 hours, An average human heart beats 1,03,689 times.
In 24 hours, An average human Lungs respire 23,045 times.
In 24 hours, An average human Blood flows 16,80,000 miles.
An average human Nails grow 0.00007 inches in every 24 hours, .
An average human Hair grows 0.01715 inches in 24 hours, .
In 24 hours, An average human Take 2.9 pounds Water (including all liquids).
In 24 hours, An average human Take 3.25 pounds FOOD.
In 24 hours, An average human Breathe 438 cubic feet AIR.
In 24 hours, An average human Lose 85.60, BODY TEMPERATURE.
In 24 hours, An average human Produce 1.43 pints SWEAT.
In 24 hours, An average human Speak 4,800 WORDS.
In 24 hours, An average human During SLEEP move 25.4 times.
The fastest human beings runs only about 30 kilometres per hour (18 miles per hour).
About 10% of the world’s population is left-handed.
A person afflicted with hexadectylism has six fingers or six toes on one or both hands and feet
A human eye blinks over 10,000,000 times a year!
The vocabulary of the average person consists of 5,000 to 6,000 words.
The average person laughs about 15 times a day
Fingernails grow nearly 4 times faster than toenails!
Never hold your nose and cover your mouth when sneezing, as it can blow out your eyeballs.
People who ride on roller coasters have a higher chance of having a blood clot in the brain.
Sneezing stops heart beat for a second and then continues.
Shape of the backbone is important to have sufficient breathing.
Like fingerprints, everyone’s tongue print is different.