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What are the 2 functions of the respiratory system?
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1) Supply the body with oxygen 2) Remove carbon dioxide from the body
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What are the four "events" of the respiratory system?
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1) Pulmonary ventilation 2) External respiration 3) Transport of respiratory gases 4) Internal respiration
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What is pulmonary respiration?
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The movment of air in and out of the lungs
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What is external respiration?
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Gas exchange between the blood and air filled chambers of the lungs
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What exactly is gas exchange that occurs with external respiration?
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O2 loading and CO2 unloading
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What are the "air-filled chambers of the lungs"
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Alveoli
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What occurs during the transport of repiratory gases?
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Transport between the lung tissues by the CV system
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What is internal respiration?
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Gas exchnage between the systemic blood and tissue cells
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What gas exhnage occurs in internal respiration?
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O2 unloading and CO2 loading
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What is the conducting zone of the respiratory system?
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Airflow from nostrils through terminal bronchioles (no exchnage of gas occurs her)
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What is the respiratory zone of the respiratory system?
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Includes the respiratory bronchioles, avelor ducts, and alveloi
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What does the upper respiratory tract include?
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The outside of the thorax, the nose to the pharynx
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What does the lower respiratory tract include?
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The inside of the thorax, the larynx to the lungs
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What are the 4 functions of the nose and the paranasal sinuses?
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1) Airway for respiration 2) Moistens, warms,filters inspired air 3) Serves as a resonating chamber for speech 4) Location for olfactory receptors
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What does the nasal septum do?
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Seperates the nasal cavity into right and left chambers
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