Mod2Q11-14 Flashcards
wet spirometer
device used for measuring respiratory volumes
u-tube manometer
used for measuring pressure
how does a wet spirometer work
subject exhales into a tube connected to a chamber floating in water. air displaces water in the chamber, causing it to rise, allowing measurement of the change
how does a u-tube manometer work
subject blows into a tube, causing a column of water to rise. result is measured in inches or centimeters of water
quiet tidal volume
the volume of air exchanged during one cycle of quiet respiration
minute volume
quantity of gas exhaled from the lungs per minute
capacity
functional combination of volumes
volume
amount of air a compartment of the respiratory system can hold
quiet tidal volume
the volume of air exchanged during one cycle of quiet respiration
inspiratory reserve volume
volume of air that can be inhaled after a tidal inspiration
expiratory reserve volume
volume of air that can be exhaled following passive tidal expiration
residual volume
volume of air remaining in the lungs after a maximum exhalation
dead space air
volume of air within the conducting passageways that cannot be involved in gas exchange
vital capacity
volume of air that can be inhaled following a maximum exhalation
functional residual capacity
the volume of air in the body at the end of passive exhalation
