|
|
This is only a preview of the paper
Click here to register and get the full text.
Existing members click here to login
|
|
|
What is cancer? ... Cancer is a word that is used to describe a group of diseases. There are many different types of cancer, but they all have one thing in common; the abnormal growth of cells beyond what is normal for cells. Left uncontrolled, cancer cells multiply and invade normal tissues and disrupt body functions. ... Usually the body destroys them, but sometimes the body misses them and they develop into a cancer. Scientists arent sure why some people develop cancer and others dont. Many factors play a role in the development of cancer in a person: genetic background, physical environment, diet, as well as many unknown factors.
Lung cancer is the uncontrolled growth of abnormal cells in the lung. Normal lung tissue is made up of cells that are programmed by nature to create lungs of a certain shape and function. Sometimes the instructions to a cell go haywire and that cell and its offspring reproduce wildly, without regard for the shape and function of a lung. That wild reproduction can form tumors that clog up the lung and make it stop functioning as it should. Because of the large size of the lungs, cancer may grow for many years, undetected, without causing suspicion. In fact, lung cancer can spread outside the lungs without causing any symptoms. Adding to the confusion, the most common symptom of lung cancer, a persistent cough, can often be mistaken for a cold or bronchitis.
Approximate Word count = 1150
Approximate Pages = 4.6
(250 words per page double spaced)
|
|
|
|
|
|