Friday, March 9, 2012
Some amazing medical facts of our body.
Friday, March 09, 2012 | 
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art_tatto_design_extremeSome amazing medical facts of our body.
- The red blood cell lives for 120 days on average
- There are 2.5 trillion red blood cells in our body at any time. About two and half millions of new ones are to be produced every second by bone marrow.
- Our heart beats about 100000 times per day
- The human heart continues to beat even if it is taken out of our body or cut into pieces.
- 25 million cells are produced each second in our body.
- Nerve impulses travel at a speed of 400 Km/Hr.
- A red blood cell can travel completely through your body in just 20 seconds.
- We inhale about two million liters of air every day through our lungs. Our lungs are large enough to cover a tennis court.
- 100 billion red blood cells are generated every day in our body.
- Our body contains 70% water.
- In one square inch of our hand, we have nine feet of blood vessels, 600 pain sensors, 9000 nerve ending, 36 heat sensors and 75 pressure sensors.
- Humans gradually start sinking in size from the age of 30 years.
- The life span of a taste bud is only 10 days.
- It is impossible to sneeze with eyes open.
- The largest artery in our body is the Aorta. It is almost the diameter of a garden hose.
- The capillaries, on the other hand are so small that it takes ten capillaries to equal the thickness of human hair.
- The heart pumps about 1 million barrels of blood through out our life time.
- Babies start dreaming even before they are born.
- The human body can function without a brain.
- A fetus acquires the fingerprints at the age of three months.
- The average human head weighs about 10 pounds and the average human brain weights 3 pounds.
- When you sneeze, all your bodily functions stop, including the heart.
- Human teeth are almost as hard as rocks.
- Every month you grow a brand new outer layer of skin!
- The length of your foot is same as your forearm between your wrist and the elbow.
- Our brain has about 100 billion nerve cells.
- The length of human blood vessel so large that it circles the globe 2 and 1/2 times.
- 80 to 100 hairs fall from our head every day.
- As we grow older, the brain loses one gram per year.
- The heart muscles stop functioning only when we die.
- The total surface area of our brain is 25000 square cms.
- There are 12,00,000 optical fibers in the human eye.
- A drop of blood contains 280 million cells.
- Every one is color blind at birth.
- Liver is the only organ in our body, which regenerates itself completely even after it is removed completely.
- An average scalp has 100000 hair on it.
- The maximum length of hair can be from 70 to 90 cms.
- The life span of hair is 2 to 7 years.
- The human skeleton renews every 3 months.
- The food gets into the stomach even we stand on our head.
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