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20 Cards in this Set
- Front
- Back
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ventilation
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breathing can also be called
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atmospheric
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the weight of air causes a force called _______ pressure
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760
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the weight of air at sea level is sufficient to support a column of mercury within a tube ____ mm high
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atmospheric pressure
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if the pressure inside the lungs decreases, outside air is forced into the airways by _________ ____________.
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phrenic
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nerve impulses are carried to the diaphragm by the ______ nerves.
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increases
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when the diaphragm contracts, the size of the thoracic cavity _________.
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visceral pleura
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only a thin film of lubrication serous fluid separates the parietal pleura from the _______ ________ of a lung.
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surfactant
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a mixture of lipoproteins called __________ acts to reduce the tendency of alveoli to collapse
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elastic recoil
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the force responsible for normal expiration comes from _______ _________ of tissues and form surface tension.
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internal intercostals
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muscles that help to force out more than the normal volume of air by pulling the ribs downward and in wars include the _________ ___________.
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abdominal wall
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the diaphragm can be forced to move higher than normal by contraction of the ________ ________ muscles.
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expiratory reserve volume
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volume in addition to tidal volume that leaves the lungs during forced expiration.
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functional residual capacity
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volume of air remaining in the lungs following exhalation of the tidal volume.
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inspiratory capacity
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maximum volume a person can inhale following exhalation of the tidal volume.
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inspiratory reserve volume
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volume in addition to tidal volume that enters lungs during forced inspiration
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residual volume
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volume that remains in lungs after the most forceful expiration
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tidal volume
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volume that enters or leaves lungs during respiratory cycle
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tidal volume
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volume that enters or leaves lungs during respiratory cycle
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total lung capacity
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vital capacity plus residual volume
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vital capacity
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maximum volume a person can exhale after taking the deepest possible breath
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