Asthma: Disease of the respiratory system Breathing‚ the act of inhaling and exhaling of air. Oddly enough this process is an absolute necessity for life and yet we do not control it. There are two systems involved in our ability to breathe one is the parasympathetic nervous system and the other is the respiratory system. The parasympathetic nervous system controls the body ’s unconscious actions that are necessary to live such as the beating of the heart. The Respiratory system mainly consists of
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Toxicology Name April 9th‚ 2012 Env/410 Jennifer Ott Environmental toxicology refers to specific organs as target organs. This is an organ that has the highest probability of being affected by exposure to a specific substance. Target organ toxicity refers to the negative effects a chemical has on that target organ after entry into the body (Hodgson‚ 2010). There are multiple organs such as the liver which are targeted simply because of ease of access. Any organ that can be accessed through
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HOW AND WHY DO WE BREATHE REFERENCES: I. Essay pp. 3-5 II. References p. 6 The diaphragm is a muscle in the chest cavity that contracts and relaxes according to signals received by the respiratory center in the brain. In doing so‚ the diaphragm changes the pressure in the cavity. When the diaphragm contracts‚ it increases the volume of the chest cavity and lowers the air pressure‚ thus‚ air rushes in. This is called inhalation. Exhalation is caused by the relaxation
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discuss three kind of pollution in large cities affect human health. Air‚ water and land pollution. Main Body: Paragraph 1: TS: The general air pollution such as particulate matter is what large cities cannot avoid neither and can lead to respiratory infection‚ chornic obstructive pulmonary disease and even blindness. Air pollution is divided into outdoor air pollution and indoor air pollution. ①Urban air pollutant(natural origin)→tuberculosis‚ asthma in children ②Indoor environmental
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Aging is something that continuously happens throughout life‚ which produces a lot of changes throughout the body. With that being said‚ many changes throughout the body affect the respiratory system. As individuals age‚ bones of the body become thin‚ weak‚ and change shape. The ribcage is affected by this change and can alter a person’s breathing as it becomes unable to expand and contract the way it used to. Muscles in the body also become weak. If the muscle that supports breathing‚ called the
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a nasal mist for the prevention of influenza (Wikipedia‚ 2012). Key Issues The board of MedImmune believed that Aviron was a good strategic fit but didn’t know what to offer. We need to see all the advantages and disadvantages to come to the conclusion. With other vaccines and cancer treatment products‚ MedImmune wants to get larger market shares and become the leader in vaccines discovery‚ development‚ manufacture‚ and marketing. From the background we can see Aviron is also a biopharmaceutical
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Critically Evaluate the Training of Mo Farah and Explain the Physiological Changes that will Occur. Mo Farah had to go through tough training to become the athlete he is today. Due to Mo’s type of events‚ (10‚000 and 5‚000 meters) he needs a high aerobic capacity and VO2 max. Aerobic capacity is how well the lungs‚ heart and the blood vessels work together‚ and VO2 Max is the maximum oxygen consumption attainable during maximal work. VO2 max can only be improved in 10 – 20% of the population
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either dust particles or small respiratory droplets and can stay suspended in air and or are capable of traveling distances on air currents.[1] Often‚ airborne pathogens or allergens cause inflammation in the nose‚ throat‚ sinuses and the lungs. This is caused by the inhalation of these pathogens that affect a person’s respiratory system or even the rest of the body. Sinus congestion‚ coughing and sore throats are examples of inflammation of the upper respiratory air way due to these airborne agents
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sinuses? - Since Cari is a smoker‚ cigarette smoke has paralyzed her cilia and stimulated the goblet cells lining her respiratory passages to secrete excess amounts of mucus. Ducts from the sinuses open into the internal nose providing a passageway for microorganisms to travel into the sinuses. B.) What is the couch reflex? Describe the process that Cari’s respiratory system is using to clear her lungs by couching. - A long drawn and deep inhalation followed by a complete closure of the glottis
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ear are connected by ducts in the throat. B. What is the cough reflex? Describe the process that Cari’s respiratory system is using to clear her lungs by coughing. a. Cough reflex is a long-drawn and deep inhalation followed by a complete closure of the glottis‚ which results in a strong exhalation that suddenly pushes the glottis open and sends a blast of air through the upper respiratory passages. This process is clearing her lungs by forcing foreign bodies out of the larynx‚ trachea and epiglottis
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