general - gym instructor
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Respiratory System (consists of) | nose, pharynx, larynx, trachea, bronchi, lungs
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| trachea | proper name for windpipe
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| bronchi | divisions of the trachea going to left and right lung and further dividing into bronchioles
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| alveoli | tiny air sacs at the end of the bronchioles, thin walls one cell thick surrounded by capillaries
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| gaseous exchange | oxygen (in) and carbon dioxide (out) passing through capillaries and alveoli
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| respiration (purpose of) | to supply oxygen and remove carbon dioxide - pulmonary respiration
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| respiratory muscles | internal intercostals, pectoralis minor, abdominals, scalenes, sternocleidomastoid
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| respiratory centre | located in brain, sends nerve impulses to control breathing rate. main factor affecting breathing rate CO2 level in blood and resiratory centre
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| breathing control | mainly involuntary, but can be conciously controlled during activities when required (eg swimming)
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| tidal volume | 500ml - volume of air breathed in/out
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| dead space | 150ml air reamining in nose throat and trachea
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| minute ventilation | 6000-7500ml volume of air inspired/expired in 1 minute (tidal volume x breaths taken)
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| inspiratory reserve volume | 3300ml additonal amount of air breathed in through forced inspiration
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| inspiratory capacity | 3800ml tidal volume+inspiratory reserve
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| expiratory reserve volume | 1200ml additional amount of air that can be forcibly expired
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| residual volume | 1200ml volume remaining after maximum expiration
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| expiratory capacity | 1700 ml tidal volume plus expiratory reserve
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| functional residual volume | 2400ml air in lungs at resting expiratory level. expiratory reserve plus residual volume
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| vital capacity | 4800ml maximum amount of air forcibly exhaled after maximum inspiration
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| total lung capacity | 6000ml vital capacity + residual volume
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Created by:
sidneybetty
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