The Respiratory System

Terms in this set (12)

internal respiration
Exchange of gases between cells of the body and the blood
external respiration
exchange of gases between lungs and blood
nasal conchae
two bones that help to complete the nasal cavity by forming the side and lower wall
sinuses
air-filled spaces in the skull that open into the nasal cavity
inspiration
breathing in (inhalation)
expiration
breathing out (exhalation)
Diaphragm
Large, flat muscle at the bottom of the chest cavity that helps with breathing
spirometry
a measurement of breathing (or lung volumes)
tidal volume
Amount of air that moves in and out of the lungs during a normal breath
vital capacity
The total volume of air that can be exhaled after maximal inhalation.
residual volume
Amount of air remaining in the lungs after a forced exhalation
air pressure
The measure of the force with which air molecules push on a surface
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