What is lung cancer?

Cancer is a disease in which abnormal cells grow. Lung cancer is a type of cancer which manifests itself in the lungs. More information about lung cancer The lungs are the organs through which we can breathe. The main function of the lungs to exchange oxygen which all organisms in our body can continue to live. The air enters through the nose where it is filtered, moistened and warm. Then the Source URL: http://free-wallpapers-2.blogspot.com/2011/10/what-is-lung-cancer.html
Visit Free Wallpapers | Wallpapers 2012 for daily updated images of art collection