Friday, 10 January 2014

Something that I learned about humans..

Liver is one of the 'busy' and hard working organ in body. It has about 500 different functions. Some of the function of liver are ; plasma protein synthesis, decomposition of red blood cell, bile production, and detoxification.

The surface area of a human lung is equal to a tennis court. It is filled with thousands of branching bronchi and tiny, grape-like alveoli in order to more efficiently oxygenate the blood,. These are filled with microscopic capillaries which oxygen and carbon dioxide. The large amount of surface area makes it easier for this exchange to take place, and makes sure you stay properly oxygenated at all times. 

Your left lung is smaller than your right lung to make room for your heart. While the lungs are fairly similar in size, the human heart, though located fairly centrally, is tilted slightly to the left making it take up more room on that side of the body and crowding out that poor left lung. 

You could remove a large part of your internal organs and survive. The human body may appear fragile but it’s possible to survive even with the removal of the stomach, the spleen, 75 percent of the liver, 80 percent of the intestines, one kidney, one lung, and virtually every organ from the pelvic and groin area.

The fastest growing nail is on the middle finger. And the nail on the middle finger of your dominant hand will grow the fastest of all. Why is not entirely known, but nail growth is related to the length of the finger, with the longest fingers growing nails the fastest and shortest the slowest. 

Every day the average person loses 60-100 strands of hair. Unless you’re already bald, chances are good that you’re shedding pretty heavily on a daily basis. Your hair loss will vary in accordance with the season, pregnancy, illness, diet and age.  

The colder the room you sleep in, the better the chances are that you’ll have a bad dream. It isn’t entirely clear to scientists why this is the case, but if you are opposed to having nightmares you might want to keep yourself a little toastier at night. 

Right-handed people live, on average, nine years longer than left-handed people do. This doesn’t have a genetic basis, but is largely due to the fact that a majority of the machines and tools we use on a daily basis are designed for those who are right handed, making them somewhat dangerous for lefties to use and resulting in thousands of accidents and deaths each year. 

Koalas and primates are the only animals with unique fingerprints. Humans, apes and koalas are unique in the animal kingdom due to the tiny prints on the fingers of their hands. Studies on primates have suggested that even cloned individuals have unique fingerprints. 

Tears and mucus contain an enzyme (lysozyme) that breaks down the cell wall of many bacteria. This is to your advantage, as the mucus that lines your nose and throat, as well as the tears that wet your eyes are helping to prevent bacteria from infecting those areas and making you sick. 

Your ears secrete more earwax when you are afraid than when you aren’t. The chemicals and hormones released when you are afraid could be having unseen effects on your body in the form of earwax. Studies have suggested that fear causes the ears to produce more of the sticky substance, though the reasons are not yet clear.  

A human head remains conscious for about 15 to 20 seconds after it is been decapitated. While it might be gross to think about, the blood in the head may be enough to keep someone alive and conscious for a few seconds after the head has been separated from the body, though reports as to the accuracy of this are widely varying.










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