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Respiratory System

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Term
Definition
Nose   Opening where air enters  
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Nasal Cavity   Hollow space in the nose lined with mucous membranes; As air enters, it is warmed, filtered, & moistened  
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Cilia   tiny hair-like structures that trap dirt/particles  
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Sinuses   Cavities in the skull which help in voice resonance  
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Pharynx   Throat (helps carry air to the lungs & food to the stomach)  
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Epiglottis   cartilage flap that prevents food from entering the respiratory tract  
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Larynx   Voicebox (vocal cords vibrate to produce speech when air exits the lungs)  
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Trachea   Windpipe (tube from the larynx to the chest)  
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Bronchus   Lower end of the trachea that divides to connect to the lungs  
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Bronchiole   Lower/smaller bronchi within the lungs  
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Alveoli   Cluster of thin-walled sacs surrounded by capillaries that exchange oxygen and carbon dioxide  
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Lungs   Organs of respiration  
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Diaphragm   Muscle that makes breathing possible  
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Ventilation   the process of breathing  
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Inspiration   (inhalation) the diaphragm contracts (moves down) and the rib cage expands  
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Expiration   (exhalation) the diaphragm relaxes (moves up) and the rib cage returns to normal  
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External Respiration   Exchange of carbon dioxide & oxygen between the lungs and blood stream  
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Internal Respiration   Exchange of carbon dioxide & oxygen between the tissue cells and blood stream  
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Asthma   Narrowed bronchioles caused by spasms/swelling (triggered by allergies or exercise)  
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Bronchitis   Inflammation (swelling) of the bronchial tubes (caused by infection)  
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Emphysema   Walls of alveoli deteriorate and lose their elasticity  
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Epistaxis   nosebleed  
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Influenza   Viral infection that causes coughing, sneezing, fatigue, body aches and contagious with a quick onset  
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Laryngitis   Inflammation of the voicebox  
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Lung Cancer   Abnormal cell growth found mainly in the lungs of smokers  
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Pneumonia   Lung infection of the alveoli  
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Rhinitis   Inflammation of the nasal mucous membranes  
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Sinusitis   Inflammation of the mucous membranes in the sinuses  
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Tuberculosis   Infectious bacterial lung disease where lesions form in the lungs that can spread (Highly contagious)  
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Lung capacity   the volume of air that can fill your lungs  
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Vital capacity   the largest possible amount of air that can be exhaled after drawing a deep breath  
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Expiratory reserve   the amount of air that remains in the lungs after exhaling normally  
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Tidal volume   the amount of air taken in or expelled during normal breathing  
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Created by: vorachekt
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