Trade Beyond Boundaries(My Other Blog)

Health & Fitness Store( MUST VISIT )

20 Little Known Facts About The Human Body

Have A Look

1. A human being loses an average of 40 to 100 strands of hair a day.
2. A cough releases an explosive charge of air that moves at speeds up to 60 mph.
3. Every time you lick a stamp, you're consuming 1/10 of a calorie.
4. A fetus acquires fingerprints at the age of three months.
5. A sneeze can exceed the speed of 100 mph.
6. Every person has a unique tongue print.
7. According to German researchers, the risk of heart attack is higher on Monday than any other day of the week.
8. After spending hours working at a computer display, look at a blank piece of white paper. It will probably appear pink.
9. An average human drinks about 16,000 gallons of water in a lifetime.
10. A fingernail or toenail takes about 6 months to grow from base to tip.
11. An average human scalp has 100,000 hairs.
12. It takes 17 muscles to smile and 43 to frown.
13. Babies are born with 300 bones, but by adulthood we have only 206 in our bodies.
14. Beards are the fastest growing hairs on the human body. If the average man never trimmed his beard, it would grow to nearly 30 feet long in his lifetime.
15. By age sixty, most people have lost half of their taste buds. By the time you turn 70, your heart will have beat some two-and-a-half billion times (figuring on an average of 70 beats per minute.)
16. Each square inch of human skin consists of twenty feet of blood vessels.
17. Every human spent about half an hour as a single cell.
18. Every person has a unique tongue print. Every square inch of the human body has an average of 32 million bacteria on it.
19. Fingernails grow faster than toenails.
20. Humans shed about 600,000 particles of skin every hour - about 1.5 pounds a year. By 70 years of age, an average person will have lost 105 pounds of skin.

Some Important Facts of Human Body

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)

General Info About Human Body

1.Our heart beats around 100,000 times every day.

2.Our blood is on a 60,000-mile journey.

3.Our eyes can distinguish up to one million color surfaces and take in more information than the
largest telescope known to man.

4.Our lungs inhale over two million liters of air every day, without even thinking. They are large
enough to cover a tennis court.

5.Our hearing is so sensitive it can distinguish between hundreds of thousands of different sounds.

6.Our sense of touch is more refined than any device ever created.

7.Our brain is more complex than the most powerful computer and has over 100 billion nerve cells.

8.We give birth to 100 billion red cells every day.

9.When we touch something, we send a message to our brain at 124 mph.

10.We have over 600 muscles.

11.We exercise at least 30 muscles when we smile.

12.We are about 70 percent water.

13.We make one liter of saliva a day.

14.Our nose is our personal air-conditioning system: it warms cold air, cools hot air and filters impurities.

In one square inch of our hand we have nine feet of blood vessels, 600 pain sensors, 9000 nerve
endings, 36 heat sensors and 75 pressure sensors.

EXCRETORY SYSTEM

The systems that excrete wastes from the body. For example, the system of organs that regulates the amount of water in the body and filters and eliminates from the blood the wastes produced by metabolism. The principal organs of the excretory
system are the kidneys, ureters, urethra, and urinary bladder.

SKELETAL SYSTEM

The framework of the body, consisting of bones and other connective

tissues, which protects and supports the body tissues and internal

organs. The human skeleton contains 206 bones, six of which are the tiny bones of the middle ear (three in each ear) that function in hearing. The largest bone in the body is the thigh
bone, or femur.

MUSCULAR SYSTEM

The system in the body composed of muscle cells
and tissues that brings about movement of an organ or body part. There are three kinds of muscle: skeletal muscle, which is
attached to bones and allows the voluntary movement of limbs; smooth muscle, which is found in internal organs
and aids in the involuntary movements that occur in the circulatory, digestive, excretory, reproductive, and respiratory systems; and cardiac muscle, which forms the powerful walls
of the heart.

RESPIRATORY SYSTEM

The organs in the body involved in respiration. Air enters the body through the nose and mouth and travels down the  trachea, through the bronchial tubes, and finally into the lungs. Once in the lungs, the air is drawn into an enormous number of
thin-walled sacs richly supplied with capillaries.  The exchange of oxygen and carbon dioxide in the blood takes place in these
tiny sacs.

CIRCULATORY SYSTEM

The system in the body by which blood and lymph are circulated. The parts of the circulatory system include the heart, along with all the arteries, veins, and capillaries. The organs of the lymphatic system are also considered to be
part of the circulatory system. Nutrients, oxygen,
and other vital substances are carried throughout the
body by the blood, which is pumped by rhythmic
contractions of the heart. Blood is pumped from the
heart to the arteries, which branch into smaller
and smaller vessels as they move away from the
heart. The blood passes oxygen and nutrients to
the cells and picks up waste in the capillaries,
then returns to the heart via a system of veins. 

HUMAN DIGESTIVE SYSTEM

In the digestive system, ingested food is converted into a form that can be absorbed into the circulatory system for distribution to and utilization by the various tissues of the

body. This is accomplished both physically, by mastication

in the mouth and churning of the stomach, and chemically, by

secretions and enzymes of the gastrointestinal tract. Beginning at the mouth, all food passes through the alimentary canal ( pharynx, esophagus, stomach, and intestines) before it reaches the anus, where undigested matter is eliminated as waste. The outer walls of the digestive tract are composed of layers of muscle and tissue that undergo waves of contraction (peristalsis), thereby pushing the food along its digestive path.

The inner lining contains glands that secrete the acids and enzymes necessary to break down food into a form

utilizable by the body. Digestion begins in the

mouth, where chewing reduces the food to fine

texture, and saliva moistens it and begins

the conversion of starch into simple sugars by

means of an enzyme, salivary amylase. The

food is then swallowed, passing through the

pharynx and down the muscular esophagus, or

gullet, to the expanded muscular pouchlike

section of the gastrointestinal tract, the stomach. Specialized

cells in the stomach secrete digestive enzymes and gastric

juices, which act on the partially digested food.

The stomach also physically churns and mixes the food. The

stomach secretions include the enzyme pepsin, which acts on

proteins; hydrochloric acid, essential for the action of pepsin; and an enzyme, gastric lipase, which begins the breakdown of fats. The gastric juices of young children contain, in addition to those just mentioned, the enzyme rennin, which acts on

milk. Some foods, including simple sugars and alcohol, are

absorbed directly through the stomach wall and do not remain

in the stomach. Most food, however, is not absorbed in the stomach and passes into the duodenum (first section

of the small intestine) in the form of a thick liquid

called chyme. Digestive enzymes from the pancreas and bile

from the liver act on the chyme in the duodenum.

These enzymes include pancreatic lipase, which

breaks down fats into glycerol and fatty acids; pancreatic amylase, which continues the breakdown of starches and most other carbohydrates into disaccharides; and trypsin and erepsin, which break down whole and partially digested proteins (proteoses and peptones) into amino acids, the end products of protein digestion. Bile is essential for emulsifying large fat globules into smaller ones that are more easily digested by pancreatic lipase. In addition, intestinal juices are

secreted by small glands in the intestinal wall called the crypts of Lieberkühn. Like the pancreatic juices, intestinal juices contain enzymes that continue the digestion of proteins and fats and also contain three enzymes that  break down disaccharides into glucose, galactose, and fructose (simple sugars). The digested food is absorbed into the circulatory and lymphatic systems through small fingerlike projections of the intestinal wall, called villi. Undigested material passes into the large intestine, where most of the water is absorbed and the solid material, or feces, is excreted through the anus.

NERVOUS SYSTEM

The system in the body that controls internal functions of the body and receives, interprets, and responds to stimuli. The
nervous system is made up of the brain, the spinal
cord, the nerves, and the sense organs, such as the
eye and ear.

Human Body Vs Machine

Friends ! Our body works just like a machine . As a machine has different parts and all parts of the machine should be in good condition for the proper functionality of the machine so as our body is made of a no. of parts and likewise functionality of these parts affects the whole body system.

 Our body has been divided into a no. of systems depending upon their functions like Nervous System controls all the nerves of the body and Respiratory System controls the passage of oxygen and carbondioxide along with some other functions. We will discuss these later.

GETTING STARTED

Hello Friends!  I am developing this site out of my intention that everybody should know his or her body so that anything happening to this body whether good or bad should be cared/cured properly and obviously medically. 

HUMAN BODY