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respiratory system

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respiratory system   consists of the lungs and air passages; responsible for taking in oxygen and removing carbon dioxide  
nose   has two openings called nostrils through which air enters  
nasal septum   divides the nose into two hollow spaces  
nasal cavities   lined with a mucous membrane  
cilia   tiny, hairlike structures that filter inhaled air to trap dust and other particles  
sinuses   cavities in the skull that surround the nasal area  
pharynx   throat; lies directly behind the nasal cavities  
larynx   voice box; lies between the pharynx and trachea  
epiglottis   a special leaflike piece of cartilage, closes the opening into the larynx during swallowing  
trachea   windpipe; tube extending from the larynx to the center of the chest  
bronchi   where the trachea divides into two bronchi; a right bronchus and a left bronchus  
bronchioles   the smallest branches of the bronchi unit  
alveoli   contain a rich network of blood capillaries  
lungs   an organ located in the thoracic cavity where the divisions of the bronchi and alveoli are found  
pleura   what each lung is enclosed in; a membrane  
ventilation   the process of breathing  
inspiration   the process of breathing in air  
expiration   when air is forced out of the lungs and you breath out  
respiration   the process of inspiration and expiration  
external respiration   the exchange of oxygen and carbon dioxide between the lungs and bloodstream  
internal respiration   the exchange of carbon dioxide and oxygen between the tissue cells and the bloodstream  
cellular respiration   when the cells use the oxygen and nutrients to produce energy, water, and carbon dioxide  
asthma   cause: a sensitivity to an allergen; stress; infection symptoms: dyspnea, wheezing, coughing treatment: bronchodilators, anti-inflammatory medications  
bronchitis   causes: infection symptom: chest pain, fever, dyspnea treatment: antibiotics, expectorants, rest  
chronic obstructive pulmonary disease   cause: smoking, infections symptoms: any chronic lung disease treatment: bronchodilators, mucolytics, cough medicine  
emphysema   cause: heavy smoking symptom: dyspnea, pain, barrel chest, chronic cough treatment: breathing exercises  
epistaxis   cause:  


   


 
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