Unknown Facts about Human body.

The human body of man is made up of many tissues and organs. They number in millions. The cell are organised uniquely and function dynamically together. Their complexities can be understood better when it is closed scanned. Here are some bits of information that are quite interesting.

• The Stomach takes 20 minutes to tell the brain that it is full and that one should stop eating.
• The thickness of skin varies from 1/2 to 6 mm, depending on area of body.
• The four taste zones on your tongue are bitter ( back), sour ( back sides) salty( front side) and sweet (front).
• One uses 14 muscles to smile and 43 to frown.
• It takes the interaction of 72 different muscles to produce human speech.
• The strongest muscle of the body is the masseter muscle,which is located in the jaw.
• The small intestine is about 750 cm long.
• The large intestine is 150 cm long and 3 times wider than the small intestine.
• Most people shed 20 kg on skin in a lifetime.
• When you sneeze, air rushes through your nose at the rate of 156 kmph.
• About 5-6 litres of blood is filtered by 2 million nephrons 37 times a day.
• Each of our eyes has 6M cones, which help us see in colour.
• Our heart beats about 1,00,000 times/day.
• The average human brain has about 100 billion nerve cells.
• The thyroid cartilage is more commonly known as the Adam's apple.
• It's impossible to sneeze with open eyes.
• When you sneeze, all your body function stop even your heart.
• Babies are born without knee cap. They don't appear till they are 2-6 years of age.
• Children grow faster in spring season.
• Women blink twice as much as men.
• If one is blind in one eye, he only loses about 1/5 of vision and the sense of depth.
• Our eyes are the same size from birth, but our nose and ears never stop growing.
• Hair is made of the same substance as fingernails.
• A finger nails takes about 6 months to grow from base to tip.
• The energy used by brain is enough to light a 25 watt bulb.
• The heart produces enough pressure to squirt blood 900 cm.
• We get a new stomach lining every 3-4 days. IF we didn't , the strong acids our stomach uses to digest food would also digest our stomach.
• Each square inch of human skin consists of 600 Cm of blood vessels.
• The Liver is the only major organ in the human body that can regenerate itself if part of it is removed.