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THE HUMAN LUNG


        The human two lungs are made up of a complex latticework of tubes, which are suspended, on either side of the heart, inside the chest cavity on a framework of elastic fibers. Air is drawn in via the mouth and the nose, the latter acting as an air filter by trapping dust particles on its hairs. The air is warmed up before passing down the windpipe, where it's divided at the bottom between two airways called bronchi that lead to either lung.

 
                                           
   Within the lungs, the mucus-lined bronchi split like the branches of a tree into tens of thousands of ever smaller tubes (bronchioles), which connect to tiny sacs called alveoli. The average adult's lungs contain about 600 million of these spongy, air-filled structures. There are enough alveoli in just one lung to cover an area roughly the size of a tennis court.
             The alveoli are where the crucial gas exchange takes place. The air sacs are surrounded by a dense network of minute blood vessels, or capillaries, which connect to the heart. Those that link to the pulmonary arteries carry deoxygenated blood that needs to be refreshed. Oxygen passes through the incredibly thin walls of the alveoli into the capillaries and is then carried back to the heart via the pulmonary veins. At the same time, carbon dioxide is removed from the blood through the same process of diffusion. This waste gas is expelled as we breathe out.
      The rate at which we breathe is controlled by the brain, which is quick to sense changes in gas concentrations. This is certainly in the brain's interests—it's the body's biggest user of oxygen and the first organ to suffer if there's a shortage.
 

        FACTS OF THE LUNGS

    Below are the summary list of what an average human lung is capable of.
•     The Breathing Rate is faster in women and children than in Men.
•     Approximately 1 litre of air is always stay in the lungs, no matter how we hardly breathe out.
•     About 300 Million Alveoli was there in the Both lungs of an Adult
•    The Left Lung is smaller than the Right Lung because the heart is in the middle of Chest Cavity as the Larger part bulges out to the left, Leaving less space for that lung.
•     The Word Lung word came from the Old English word "lunge" which it means "Light".
•     The lungs is the only organs that can Float on the Water.
•    Approximately we are taking about 22,000 breaths every 24 hours.
•    We have approximately 1500 miles of airways.
•     The Surface area of the lungs is roughly same size as the Tennis Court.
•     If placed one to one end the Capillaries in the lungs would Extend about 1,600 They can propel a sneeze at over 100mph (160 km/h).
•     The surface area of the lungs is roughly the same size as a tennis court.
•    We lose about half a litre of water a day through breathing.
•    We breathe an average of 8 litres of air per minute, even when sitting – this is the equivalent of 4 average sized bottles of coca-cola.
•     The lungs breathe about 400 cubic feet of air each day.kilometers.
•     More than 1.4 million cases of lung cancer are diagnosed each year worldwide.
•     Every 30 seconds someone, somewhere in the world dies of lung cancer. This is equal to 3,000 people every day worldwide.
•    If diagnosed early enough, lung cancer may be curable.
•     There are currently almost 1,000 clinical trials taking place in the world studying treatments for lung cancer.
•     Today there are more than 20 phase III trials ongoing evaluating potential drugs for the treatment of lung cancer.
•    The past decade of biomedical research has provided an enormous amount of information about lung cancer and its molecular processes. About 50 different components of molecular function are being targeted by for the treatment of lung cancer, including currently available drugs and those being tested in clinical trials, offering great new hope for patients.
•     The women’s free diving world record was recently set by New Zealander Kathryn McPhee who broke the record on 9 August 2008, swimming to a depth of 151 metres in 2 minutes and 48 seconds – a greater depth than the height of St Peter’s Basilica in Rome.
•     The Guinness World Record for the most powerful lungs is held by Manjit Singh, from the UK, who managed to inflate a meteorological balloon to a diameter of 8 feet, in 42 minutes.
•     The 1968 Olympics were held in Mexico City at an altitude of 7300 feet – where the average air pressure is 25% lower than at sea level. This may explain why four of the five endurance track events held there were won by men who came from high altitudes.
•    With practice, the lungs can hold a breath for up to 10 minutes – this was demonstrated recently by the free diver Tom Sietas, who held his breath underwater for 10 minutes and 12 seconds.
Do you know that you can fracture your rib if you sneeze too hard enough and you can also kill yourself if you try to suppress a sneeze,because your the blood vessel in your head or neck can rupture which easily leads to death.
 Have you now seen what your lungs are capable of doing,so therefore, add value to your lungs.
                                                       

                                

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