The Anatomy Of The Lungs

The respiratory system consists of the lungs and air passages. The system functions to bring in air and extract oxygen and remove carbon dioxide*. The body can hold 4 to 6 minutes worth of oxygen so the respiratory system must work at all times to prevent death. There are multiple parts to the respiratory system for example, the nose has nostrils or nares. It contains a nasal septum which divides the nose into hollow spaces called nasal cavities. The nose filters the air with the mucus produced. Also located in the nose are the olfactory receptors, and nasolacrimal ducts. The sinuses which are resonating chambers of cavities located in the skull. A larger part of the respiratory system is the pharynx also known as the throat. It is located directly behind the nasal area, divided into three parts; nasopharynx(upper portion), Oropharynx(middle portion), Laryngopharynx (lower portion). The larynx also known as the “voice box” located between the trachea and pharynx. Trachea also known as the windpipe extends from the larynx to the center of the chest; its functions to carry air between the pharynx and bronchi. The bronchi function to carry air to the lungs. The right bronchus is more vertical, shorter, and wider compared to the left.Bronchi continue to branch off into smaller bronchioles, the smallest is called terminal bronchioles which deliver air to the alveoli. 500 million alveoli, which have a rich network of capillaries needed for exchange of oxygen and CO2( taken place

Lung cancer can be caused by multiple factors and many factors can work together to cause someone to have lung cancer. Besides smoking, radon, secondhand smoke, the environment and someone’s occupation can all cause lung cancer. As we already know smoking is the number one cause of lung cancer cases worldwide and over forty-three million people just in the United States smoke cigarettes. There are more than fifty chemicals in tobacco smoke that are ingested each time someone smokes. Some of these chemicals include benzene (which can be found in pesticides and gasoline), Formaldehyde (which preserve dead bodies), pesticides (which are found on lawns and gardens) and Tobacco-specific N-nitrosamines (Martin, 2012). When a person inhales the chemicals in cigarettes, they inhale thousands of poisons, toxic metals, and

Lung cancer is the leading cause of cancer death, and cigarette smoking causes almost all cases. Compared to nonsmokers, men who smoke are about 23 times more likely to develop lung cancer and women who smoke are about 13 times more likely. Smoking causes

The main organs of the respiratory system are the lungs – they are the location where the gas exchange between oxygen and carbon dioxide takes place. The lungs therefore expand when you breathe in, and retract when you breathe out. This is done through the diaphragm – a sheet of muscle that is positioned under the lungs. As one inhales, their diaphragm contracts and moves itself downward, increasing the space for your lungs to expand to. The ribs also move to enlarge the possible area the lungs can expand to. This pressure causes air to be sucked through the body to the lungs. When one exhales, the opposite takes place – the diaphragm moves upwards and returns to normal, allowing the process to happen again.

Tobacco smoking is responsible for nearly all cases of a chronic breathing obstruction known as Chronic Obstructive Pulmonary Disease (COPD). COPD includes diseases like emphysema and chronic bronchitis, and leaves sufferers breathless and unable to do many activities. Lung cancer is the disease of the smoker, with 90% of primary lung cancers caused by smoking. Nearly one in four smokers who die prematurely will die of lung cancer. Lung cancer is the biggest cancer killer in the UK. Your lungs are damaged not only by the number of cigarettes you smoke a day, but more importantly by the number of years you have been a smoker. So,

e purpose of the respiratory system is to bring the air we breathe into close contact with the blood in order for the absorption of oxygen and expulsion of carbon dioxide. The respiratory system consists of a pair lungs which are connected to the mouth via the trachea and bronchi. The ribs and intercostal muscles are part of the respiratory system. This is because they not only protect the lungs, trachea and bronchi but also move and assist with breathing.

The number one factor for getting lung cancer is smoking tobacco. Smoking causes cancers because the tobacco changes our DNA and

Most people know that smoking is one of the main causes of lung cancer. However, there are also other things that increase your cancer risk you are doing everyday. This includes breathing air full of smog to breathing the fumes from a running automobile or any gas powered engine.

Lung cancer is the deadliest form of cancer in the United States. It kills more men and women than a number of cancers combined. The disease has many risk factors that affect the chances of obtaining it. The leading risk factor is one that can be avoided, that is smoking. This paper will look at methods to find, diagnose and treat lung cancer. It will show ways to reduce chances of getting lung cancer and also look at preventive methods used.

Lung cancer is the leading cancer killer of men and women in the U.S. The main cause of lung cancer is smoking. (Health Risks, n.d.) Smoking weakens our body’s immune system due to the chemicals (carcinogens) that are found in cigarettes. People don’t realize how damaging these chemicals are in their bodies or maybe they do and just don’t think it will happen to them. Smoking not only causes cancer it, also causes other health issues such as heart disease, COPD, obesity and many others. The sad thing is cigarette companies know they are slowly killing people, yet they continue to advertise and sell their products. Although, this isn’t very hard for them to do with all the help they get from actors and actresses making films with them smoking. This is why kids start smoking at such a young age, because they see actors/actresses they idol doing it.

The lungs function as an important part of the respiratory system. We, humans, have two lungs. Surprisingly, the two lungs have some differences; the right lung is slightly larger than the left lung because the left lung must leave space for the heart, and the right lung has three lobes while the left only has two. The lungs house the alveoli and the capillaries, which exchange oxygen (O) from the air that we breathe in with carbon dioxide (CO2) that has been released into the bloodstream by cells in the body. The diaphragm, a muscle which is located below the lungs, is what helps the lungs contract and expand.

The lungs are a very important part of survival in all species. They allow oxygen to travel into small sacs in the lungs called alveoli that lets oxygen reach blood cells. This ability allows other functions in the body to work properly and maintain homeostasis. When this function becomes disrupted, erratic symptoms cause the lungs to work abnormally. Lung Cancer has a substantial toll on Americans in today’s world where cigarettes and vape pens are a common activity in today’s youth. According to L.A Times, “Cigarette smoking is responsible for at least 345,962 cancer deaths in the U.S. each year, according to a new study. About 45% of those deaths are the result of cancers of the lung, bronchus and trachea, researchers reported Monday in the journal JAMA Internal Medicine.” (Kaplan, n.pag). While media might portray smoking cigarettes as cool and fun, serious

when we breathe, this is the primary function of the entire system. Each organ of the respiratory

Smoking has many bad effects one of them being cancer, most of the leading causes of lung cancer is smoking. According to an article called “The Effects of smoking...Lung Cancer” written by many authors studied an analysis of people who have or have had lung cancer and saw that “of 366 patients in the analysis 54% we males and, 60% were diagnosed with adenocarcinoma.”

There are five vital organs in the human body that are essential for survival; there is no alternative for them. The Lungs are one of those five vital organs. All humans need to breathe. Inside this need to breathe, is a complicated system of filtration, inhalation, and exhalation. The main organ of this respiratory system is the human lungs. The key organ of the respirator is the lungs. You use your lungs without even thinking about it every time you take a breath. Breathing is controlled automatically by our nervous system and is an, “involuntary action.” Unless you make a conscious effort to control your breathing by slowing it down or holding your breath breathing is completely involuntary and happens automatically.