The Anatomy Of The Lungs

1366 Words Nov 11th, 2015 6 Pages
Cancer of the lungs takes more lives every year than breast, colon, and prostate cancer combined. In order to prevent these statistics from happening, Low-dose Computed Tomography Scans (LDCT Scans) can be used to prevent the cancer cells from spreading. Medicare and Medicaid are willing to pay for such screenings for those who are 55-77 years of age and who have smoked a pack of cigarettes a day for over 30 years or those who are smoking currently within that age group. The cost for such screenings would be astronomical causing Medicare and Medicaid to go bankrupt. Low-dose Computed Tomography Scans will reduce the risk of Lung Cancer.
The lungs are one of the most vital organs in the respiratory system. In order to understand how the lungs work, the anatomy of the lung is important. The chest wall surrounds the lungs; the chest wall is made up of the ribs and the intercostal muscles, which are the muscles in between the rib bones. The left lung is divided into two lobes; however, the right lung is divided into three lobes and is slightly larger than the left lung (Canadian Cancer Society). The trachea transfers air down towards the two lungs; it divides into two branches called the main bronchi. Each of the main bronchi divides or branches into smaller bronchi. These smaller bronchi eventually divide into even smaller tubes called bronchioles. At the end of the bronchioles are millions of tiny sacs called alveoli (Martini, Simmons, and Tallitsch 13). The alveoli oxygenizes…
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