This website uses cookies to ensure you have the best experience. Learn more

Non Small Cell Lung Cancer Essay

3680 words - 15 pages

Non-Small-Cell Lung Cancer

Lung cancer, the most preventable cancer, it is the leading cause of cancer-related deaths in men and women in Canada. In 2008, it was estimated that there would be 23,900 new cases (12,600 men and 11,300 women) of lung cancer in Canada and that there would be 20,200 deaths (11,000 men and 9200 women) from lung cancer in Canada (Lewis, Heitkemper McLean, Dirksen Ruff, O’Brien Graber, & Bucher). Non-small-cell lung cancer (NSCLC) is a term for different types of lung cancers that have different types of cancer cells that grow and spread in their own way. NSCLC accounts for 80-85% of all lung cancer cases and includes squamous cell carcinoma, adenocarcinoma, ...view middle of the document...

Large cell (undifferentiated) carcinoma also has a high correlation with smoking and exposure to environmental carcinogens. Large cell carcinomas tend to occur in the periphery of the lung, invading subsegmental bronchi and larger airways (Hannon et al. 2010).
Pathophysiology of the Respiratory System
All of the systems of the body, each have a vital function to do and each of these systems work together to keep the body in homeostasis. A major component needed to keep each system functioning properly, especially our respiratory system, is the need for oxygen. The cardiovascular and respiratory systems share responsibility for supplying the body with oxygen and disposing of carbon dioxide. The respiratory system is where for gas exchange occurs between the blood and the oxygen we breath in from the external environment.
The respiratory system is comprised of several different organs that assist in breathing; theses organs include the nasopharynx, oropharynx, larynx, trachea, and the lungs, which consist of the bronchi and bronchioles, and the alveoli. Each lung has their own lobes, the right-sided lung has three lobes while the left-sided lung has two lobes, they are also broken up into segments, the right lung has ten segments and the left lung has nine segments. There is a thin, transparent, double-layered serous membrane, called the pleura, which lines the thoracic cavity and encases the lungs (Hannon et al. 2010). The layer that encases the lungs is called the visceral pleura and the layer that lines the thoracic cavity is called the parietal pleura. There is a space between the visceral and parietal pleura called the pleural space, this space is filled with serous fluid which is slippery and allows the lungs the glide easily against the thoracic wall during breathing movements but also pleurae is tightly adhering which is absolutely essential for breathing.
The structures of the lungs are broken down into two separate zones, the conducting zone structures and the respiratory zone structures. The conducting zone structures include the left and right main bronchi which is the bottom portion of the trachea as it divides into two and comes down closer to the lungs, the right main bronchus is wider, shorter, and more vertical then the left, giving it more potential for objects to be inhaled and trapped inside. Once inside the lungs, each main bronchus subdivides into lobar (secondary) bronchi- three on the right and two on the left- each supplying one lobe. The lobar bronchi branch into third-order segmental (tertiary) bronchi, which divide repeatedly into smaller and smaller bronchi (fourth-order, fifth-order etc.). Passages smaller than 1mm in diameter are called bronchioles and the tiniest of these, the terminal bronchioles, are less than 0.5mm in diameter (Marieb & Hoehn 2013). The respiratory zone structures start at the end of the terminal bronchioles where they lead into the respiratory bronchioles, than the smallest...

Other Papers Like Non-Small-Cell Lung Cancer

Hsa 535 Lung Cancer Essay

2327 words - 10 pages lung cells cause the instructions for those cells to go askew. Consequently, those cells and their offspring reproduce wildly, without regard for the normal shape and function of a lung. That wild reproduction causes the formation of tumors that block air passages in the lung and make it stop functioning as it should. Lung cancer is usually divided into two major types. The first type is small cell lung cancer (SCLC). The second type is non

Lung Cancer Research Paper

1596 words - 7 pages €“ each one leading us closer to a day when we will be able to reverse, treat, prevent and ultimately find cures for all suffering from lung disease”. Finding a cure for such cancers as lung cancer have been in research for years, and still today, there is no known cure for cancer. According to the National Cancer Institute (June, 2012, “For many non-small cell lung cancer, current treatments do not cure the cancer.” The

Cancer Paper

1681 words - 7 pages longer life to their full extent. Lung cancer is most commonly defined as a “cancer that forms in tissues of the lung, usually in the cells lining air passages.” (Stoppler, 2011, Sec. 1,Pg.1) Cancer in the lungs results from an abnormality of cells that form into a mass called a tumor. Lung cancer is usually diagnosed under a microscope and can detect if a person has non-small lung cancer or small lung cancer, which are the two main types

Breast Cancer

926 words - 4 pages Concept of Cellular Regulation: Breast Cancer Student Name El Centro Community College Concept of Cellular Regulation: Breast Cancer The concept of Cellular Regulation consists of many exemplars, including Breast Tumors/Breast Cancer, Prostate Cancer, Lung Cancer, Colon Cancer, Lymphomas (Hodgkin’s and Non-Hodgkin’s), Skin Cancer and Leukemia. For the purpose of this paper the exemplar I will be focusing on is Breast Cancer. There are

The Effects of Cigarettes Smoking

1225 words - 5 pages cancer deaths per year. Cigarette Smoking 3 The effects of smoking on former smokers who have successfully quit, shows that over time damaged lung cells, is replaced by new cell growth. This decreases the risk of lung cancer to that of a non-smoker in 15 years of smoking cessation. These are just a few key points to the direct exposure to tobacco

Computational Analysis of Single Nucleotide Polymorphism (Snps) of Liver Cancer, Breast Cancer, and Lung Cancer

865 words - 4 pages Multigenic Approach to DNA-Repair, Apoptotic and Inflammatory Pathway Genes. Plosone. Vol 6 Hu.Z., Chen.J., Tian.T., Zhou.X., Gu.H., Xu.L., Zeng.Y., Miao.R., Jin.G., Ma.H., Chen.Y., and Shen.H. 2008. Genetic variants of miRNA sequences and non–small cell lung cancer survival. The journel of clinical investigation. 7(118):2600-2608. PROPOSED CONTENTS OF THESIS • Abstract • Acknowledgements • Introduction • Liver cancer o

Smoking and Lung Cancer

1482 words - 6 pages cancer is quite difficult to spot in the earlier stages because it develops silently and the symptoms appear after it has metastasized. X-rays are useful in spotting tumors but they cannot be done to detect small tumors. CT scans are very useful in detecting tumors as small as two millimeters. Eighty-one percent of the lung tumors that were detected through spiral CT screening were successfully removed at early stages and ninety-six percent of the


2418 words - 10 pages beyond the lungs. The vast majority of primary lung cancers are carcinomas of the lung, derived from epithelial cells. Lung cancer, the most common cause of cancer-related death in men and women, is responsible for 1.3 million deaths worldwide annually, as of 2004. The most common symptoms are shortness of breath, coughing (including coughing up blood), and weight loss. The main types of lung cancer are small cell lung carcinoma and non-small cell

Skin Cancer and Tanning

3723 words - 15 pages . Unlike other basal cell carcinomas, they are usually found on the arms, legs, and torso (English III, Canchola and Finley 1861-63). The second type of skin cancer is squamous cell carcinoma. This type of skin cancer originates within the squamous cells and becomes visible as a small growth or area of change in the skin’s appearance. Squamous cell carcinoma is the second most common type of skin cancer in North America. There are approximately

Breast Cancer

1503 words - 7 pages Eloise Petersen November 2013Breast CancerCancer is an epidemic that has been infecting the lives of many people throughout the world. It is a disease of cell division where the cell looses the ability to stop dividing. Cancer can also be referred as mutations in genes that regulate cell division/cell cycle. It can be very harmful, even fatal, to the person who is diagnosed with it. There are many different types of cancer since it can affect


3696 words - 15 pages . cells are tiny little cubes or in other words building blocks that make up the organs and tissues of our body, they are more than a hundred million million (100,000,000,000,000) cells. Cancer starts with changes in one cell or a small group of cells. Usually we have just the right number of each type of cell. This is because cells produce signals to control how much and how often the cells divide. If any of these signals are faulty or

Related Essays

Lung Cancer Essay

1420 words - 6 pages . Lung cancer divided to two types. They are small cell lung cancer (SCLC) and non-small cell lung cancer (NSCLC). They differ in cancer cell size and the way of treatment. Among all lung cancer non- small lung cancer is the most common one -80-90%. NSCLC divided into 3 subtypes. Squamous cell carcinoma affect squamous cells in the lungs airways. These are flat cells that make an internal layer of the airways. This subtype leads to 20-30% of the

Respiratory Disease Essay

1020 words - 5 pages are small cell which is very aggressive and can spread to other organs of the body in a short period of time; this type of cancer is usually found in heavy smokers. Non-small cell cancers account for the other 75% of people who are diagnosed each year. American Cancer Society (2005). Lung cancer is commonly diagnosed in people aged 50 and older and is very rarely diagnosed in younger adults. Although lung cancer has decreased in the number

Jane Dare Essay

710 words - 3 pages ” or spread through a person’s body through the bloodstream. Lung cancer can metastasize early and it one of the most difficult forms of cancer to treat. SCLC often start in the chest near the bronchi, and tend to spread widely through the body fairly early in the course of the disease. The other is called Non-small cell lung cancer or also known as NSCLS, this type of cancer makes up the remaining 85% of the lung cancer cases. NSCLS is divided

Lung Cancer: What Is It And Is There A Cure In Sight?

3806 words - 16 pages different treatment (Centers for Disease Control, 2011, a). The basic divisions of lung cancer are the non-small cell and small cell types (Centers for Disease Control, 2011, a), and these are further distinguished into different subtypes (ADAM, 2011, a, b, c). Furthermore, it is possible to have a mixture of the two main types, which is then known as mixed small cell/large cell lung cancer (ADAM, 2011, a). The non-small cell type of lung cancer is the