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Sem I Mini III Respiratory Physio


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copy deck
When a person is standing blood is ____ at the apex of the lung and ____ at the base of the lung.
lowest, highest
_____ circulation is the blood supply to the conducting airways.
Quiet breathing involves inspiration and expiration the ____ volume, equal to ___ liters.
tidal, .5
The additional volume that can be inspired over tidal volume is the _____, equal to _____.
inspiratory reserve, 3L
The additional volume that can be expired after tidal volume is the _____ volume, equal to ____.
expiratory reserve, 1.2 L
The volume of gas remaining in the lungs after a maximal forced expiration is the ___, equal to ____ liters.
residual, 1.2L
___ is the volume of gas that can not be directly measured by a spirometer, while ___ and ___ are the capacities.
residual volume, TLC, Function reserve capacity
Tidal volume plus inpiratory reserve volume equals _____
inspiratory capacity (3.5L)
Expiratory reserve volume plus residual volume equals ______.
functional residual capacity (2.4L)
____ is the volume remaining in the iungs after a normal tidal volume is expired.
_____ is the equilibrium volume.
____ is the inspiratory capacity plus the expiratory reserve volume
vital capacity (4.7L)
Vital capacity plus residual volume equals ____.
total lung capacity
The volume that can be expired after maximal inspiration is the ____.
vital capacity (4.7L)
Two methods to measure FRC are ___ and ____.
helium dilution and body plethysmography
The ____ dead space is the volume of the conducting airways.
The ____ dead space is the total volume of the lung that does not participate in gas exchange.
The ____ dead space is the dead space in the alveoli.
The most impt reason alveoli dont participate in gas exhange is a mismatch of ____ and ____.
ventilation, perfusion (ventilation/perfusion defect)
The Fowler method measures ____ dead space.
The Bohr method measures ____ dead space and the equation is _____.
physiological, Dead space volume= Tidal volume x (PCO2 of aterial blood- PCO2 of expired air)/PCO2 of arterial blood
If dead space volume is equal to tidal volume then PCO2 of expired air is equal to _____.
Minute ventilation is ____ x _____.
tidal volume, breaths/min

____ ventilation is minute venilation corrected for physiological dead space, and the equation is _____.
alveolar, alveolar ventilation= (tidal volume- physiological dead space) x breaths/min
Increases in alveolar ventilation cause a ____ on PACO2.
CO2 production and alveolar ventilation are ____ proportional.
Alveolar ventilation and alveolar PCO2 are _____ related.
The major muscle of quiet inspiration is the ____, while forced are the ____, ____, and ____.
diaphram, external intercostals, sternocleidomastoid, scalenes
Inspiration is a ___ process, forced or labored inspiration is a ___ process, expiration is a ____ process, and forced expiration is a ____ process.
active, active, passive, active
____ results from the relaxation of the inspiratory muscles and compression of the thorax, while ____ occurs though contraction of abdominal muscles.
expiration, forced expiration

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