Lung Cancer Essays - RTT, Lung Cancer, Free Essays, Term Papers

Lung Cancer Essays - RTT, Lung Cancer, Free Essays, Term Papers Lung Cancer Lung cancer is not just one disease but rather a group of diseases. All forms of cancer cause cells in the body to change and grow out of control. Most types of cancer cells form a lump or mass called a tumor. Cells from the tumor can break away and travel to other parts of the body where they can continue to grow. This spreading process is called metastasis. When cancer spreads, it is still named after the part of the body where it started. For example, if breast cancer spreads to the lungs, it is still breast cancer, not lung cancer. Another word for cancerous is malignant, so a cancerous tumor is referred to as malignant. But not all tumors are cancer. A tumor that is not cancer is called benign. Benign tumors do not grow and spread the way cancer does. They are usually not a threat to life. A few cancers, such as blood cancers (leukemia), do not form a tumor. Most cancers are named after the part of the body where the cancer first starts. Lung cancer begins in the lungs. The lungs are two sponge-like organs in the chest. The right lung has three sections, called lobes. The left lung has two lobes. It is smaller because the heart takes up more room on that side of the body. The lungs bring air in and out of the body, taking in oxygen and getting rid of carbon dioxide gas, a waste product. The lining around the lungs, called the pleura, helps to protect the lungs and allows them to move during breathing. The windpipe (trachea) brings air down into the lungs. It divides into tubes called bronchi, which divide into smaller branches called bronchioles. At the end of these small branches are tiny air sacs known as alveoli. Most lung cancers start in the lining of the bronchi but they can also begin in other areas such as the trachea, bronchioles, or alveoli. Lung cancer often takes many years to develop. Once the lung cancer occurs, cancer cells can break away and spread to other parts of the body. Lung cancer is a life- threatening disease because it often spreads in this way before it is found. Lung cancer is the leading cause of cancer death for both men and women. During the year 2000 there will be about 164,100 new cases of lung cancer in this country. About 156,900 people will die of lung cancer: about 89,300 men and 67,600 women. More people die of lung cancer than of colon, breast, and prostate cancers combined. Lung cancer is fairly rare in people under the age of 40. The average age of people found to have lung cancer is 60. If lung cancer is found and treated by surgery early, before it has spread to lymph nodes or other organs, the five-year survival rate is about 42%. However, few lung cancers are found at this early stage. The five-year survival rate for all stages of lung cancer combined was 14% in 1995, the last year for which we have national data. A risk factor is something that increases a person's chance of getting a disease. Some risk factors, like smoking, can be controlled. Others, such as a person's age, can't be changed. Smoking is by far the leading risk factor for lung cancer. More than 8 out of 10 lung cancers are thought to result from smoking. The longer a person has been smoking, and the more packs per day smoked, the greater the risk. If a person stops smoking before lung cancer develops, the lung tissue slowly returns to normal. Stopping smoking at any age lowers the risk of lung cancer. Cigar and pipe smoking are almost as likely to cause lung cancer as cigarette smoking. There is no evidence that smoking low tar cigarettes reduces the risk of lung cancer. Nonsmokers who breathe the smoke of others also increase their risk of lung cancer. Non- smoking spouses of smokers, for example, have a 30% greater risk of developing lung cancer than do spouses of nonsmokers. Workers exposed to tobacco smoke in the workplace are also more likely to get lung cancer. There are other risk factors for lung cancer besides smoking. People who work with asbestos have a higher risk of getting lung cancer. If they also smoke, the risk is greatly increased. The type of lung cancer linked to asbestos, mesothelioma, often starts in the pleura. This

Nothing to do with Raspberries, Exactly

Nothing to do with Raspberries, Exactly Nothing to do with Raspberries, Exactly Nothing to do with Raspberries, Exactly By Maeve Maddox You may soon be seeing media coverage of a newly discovered threat to the already endangered honey bee population called Rasberry crazy ants. This previously unnoticed type of ant is thought to have entered the U.S. by way of a Texas port and is now busily at work destroying honey bee larvae and other things that human beings value. Rasberry crazy ants are named for an exterminator named Tom Rasberry who first noticed their destructive habits in 2002. Theyve already caused millions of dollars of damage in Texas. Honey bees are not their only target. The ants are attracted to electrical equipment and chew through insulation, causing short circuits. Their scientific name is paratrenicha species near pubens. The epithet crazy comes from the fact that these ants dont travel in straight lines, but wander from side to side. Since their scientific name is not likely to catch on, we can expect to see the word Rasberry in the news, a circumstance that may lead to confusion among insecure spellers. The name of the fruit is spelled raspberry. raspberry: 1623, earlier raspis berry (1548), possibly from raspise a sweet rose-colored wine (c.1460), from Anglo-L. vinum raspeys, origin uncertain, as is the connection between this and O.Fr. raspe, M.L. raspecia, raspeium, also meaning raspberry. One suggestion is via Old Walloon raspoie thicket, of Gmc. origin. Raspberries can self-pollinate, but cross-pollination carried on by bees improves fruit weight and shape. Most of the fruit we like to eat, however, depends entirely on bees for pollination. As a volunteer Master Gardener Im especially aware of the plight of the honey bee. Its astounding to me that some politicians and journalists seem to find the topic laughable. NOTE: Some dictionaries list the forms honeybee or honey-bee. Entomologists write it as two words. Paratrenicha species near pubens Colony Collapse Disorder article about bee ridicule in the media Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Spelling category, check our popular posts, or choose a related post below:20 Types and Forms of HumorUsing the Active Voice to Strengthen Your WritingNominalized Verbs