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
Posted by ALL EXAM QUESTION PAPERS at 3:07 AM 0 comments
Common Chemicals Names of Some Compounds
Common Chemicals Names of Some Compounds

Common Name
Chemical Name
Chemical Formulae

Dry Ice
Solid Carbondioxide
CO2

slaked Lime
Calcium Hydroxide
Ca (OH)2

Bleaching Powder
Calcium Oxychloride
CaOCl2

Nausadar
Ammonium Chloride
NH4Cl

Caustic Soda
Sodium Hydroxide
NaOH

Rock Salt
Sodium Chloride
NaCl

Caustic Potash
Potassium Hydroxide
KOH

Potash Alum
Potassium Aluminium Sulphate
K2SO4 Al2 (SO4)3.24H2O

Epsom
Magnesium Sulphate
MgSO4.7H2O

Quick Lime
Calcium Oxide
CaO

Plaster of Paris
Calcium Sulphate
(CaSO4) ½ H2O

Gypsum
Calcium Sulphate
(CaSO4) .2H2O

Green Vitriol
Ferrous Sulphate
FeSO4.7H2O

Mohr's Salt
Ammonium Ferrous Sulphate
FeSO4 (NH4)2 SO4.6H2O

Blue Vitriol
Copper Sulphate
CuSO4.5H2O

White Vitriol
Zinc Sulphate
ZnSO4.7H2O

Marsh Gas
Methane
CH4

Vinegar
Acetic Acid
CH3COOH

Potash Ash
Potassium Carbonate
K2CO3

Hypo
Sodium Thiosulphate
Na2S2O3.5H2O

Baking Powder
Sodium Bicarbonate
NaHCO3

Washing Soda
Sodium Carbonate
Na2CO3.10H2O

Magnesia
Magnesium Oxide
MgO

Chalk (Marble)
Calcium Carbonate
CaCO3

Lunar Caustic
Silver Nitrate
AgNO3

Laughing Gas
Nitrous Oxide
N2O

Chloroform
Tricholoro Methane
CHCl3

Vermelium
Mercuric Sulphide
HgS

Borax
Borax
Na2B4O7.10H2O

Alcohol
Ethyl Alcohol
C2H5OH

Sugar
Sucrose
C12H22O11

Heavy Water
Duterium Oxide
D2O

Globar's Salt
Sodium Sulphate
Na2SO4.10H2O

T.N.T
Tri Nitrotoluene
C6H2CH3 (NO2)3

Calomel
Mercurous Chloride
HgCl

Sand
Silicon Oxide
SiO2
Posted by ALL EXAM QUESTION PAPERS at 3:06 AM 0 comments
BRANCHES OF SCIENCE
BRANCHES OF SCIENCE

Branch
Concerning Field

Aeronautics
Science of flight of airplanes

Astronomy
Study of heavenly bodies

Agronomy
Science dealing with crop plants

angiology
Deals with the study of blood vascular system

Anthology
Study of flowers

Anthropology
Study of apes and man

Apiculture
Honey industry (Bee Keeping)

Araneology
Study of spiders

Batracology
Study of frogs

Biochemistry
Deals with the study of chemical reactions in relation to life activities

Biotechnology
Deals with the use of micro-organism in commercial processes for producing fine chemicals such as drugs, vaccines, hormones, etc, on a large scale

Cardiology
Study of heart

Craniology
Study of skulls

Cryptography
Study of secret writing

Cryogenics
Study concerning with the application and uses of very low temperature

Cytology
Study of cells

Dermatology
Study of skin

Ecology
The study of relationship between organisms and environment

Entomology
Study of insects

Etiology
Study of cause of disease

Eugenics
Study of improvement of human race by applying laws of heredity. It is related with future generations

Evolution
Deals with the study of origin of new from old

Exbiology
Deals with life or possibilities of life beyond the earth

Floriculture
Study of flower yielding plants

Geology
Study of condition and structure of the earth

Genetics
Study of heredity and variations

Gerontology
Study of growing old

Gynaecology
Study of female reproductive organ

Horticulture
Study of garden cultivation

Haematology
Study of blood

Hepatology
Study of liver

. Iconography
Teaching by pictures and models

Immunology
Science which deals with the study of resistance of organisms against infection

Jurisprudence
Science of law

Kalology
Study of human beauty

Lexicography
Compiling of dictionary

Mycology
Study of fungi

Myology
Study of muscles

Nephrology
Study of kidneys

Neurology
Study of nervous system

Numismatics
Study of coins and medals

Obstetrics
Branch of medicine dealing with pregnancy

Oneirology
Study of dreams

Ophthalmology
Study of eyes

Ornithology
Study of birds

Osteology
Study of bones

Palaeontology
Study of fossils

Philately
Stamp collecting

Philology
Study of language

Phonetics
Concerning the sound of a spoken language

Physiography
Natural phenomenon

Pedology
Study of soils

Pathology
Study of disease causing organisms

Phycology
Study of algae

Physiology
Science dealing with the study of functions of various parts of organisms

Pisciculture
Study of fish

Pomology
Study of fruits

Seismology
Study of earthquakes

Sericulture
Silk industry (culture of silk moth and pupa)

Serpentology
Study of snakes

Telepathy
Communication between two minds at a distance with the help of emotions thoughts and feelings

Taxonomy
Study of classification of organisms

Virology
Study of virus