FACTS : 1. The strongest muscle in the human body is the tongue. 2. The human feet have 52 bones, accounting for one quarter of all the human body’s bones. 3. Feet have 500,000 sweat glands and can produce more than a pint of sweat a day. 4. The acid in your stomach is strong enough to dissolve razorblades. The reason it doesn’t eat away at your stomach is that the cells of your stomach wall renew themselves so frequently that you get a new stomach lining every three to four days. 5. The human lungs contain approximately 2,400 kilometres (1,500 mi) of airways and 300 to 500 million hollow cavities,havinga total surface areaofabout 70 square metres, roughly the same area as one side of a tennis court. Furthermore, if all of the capillaries that surround the lung cavities were unwound and laid end to end, they would extend for about 992 kilometres. Also, your left lung is smaller than your right lung to make room for your heart
Posted on: Tue, 09 Jul 2013 05:47:40 +0000
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