FACTS ABOUT HUMAN BODY

FACTS ABOUT 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