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under what internal conditions does air tend to flow into the lungs
when thoracic volume increases and pressure decreases
under what internal conditions does air tend to flow out of the lungs? explain.
when thoracic volume decreases and pressure increases; gases move in the direction that tends to equalize pressure inside and outside the "container"
what would happen if an opening were made into the chest cavity, as with a puncture wound?
the partial vaccum in the pleural space and the lung on the affected side collapses
what is the volume of air present in the lungs after a forceful expiration?
Residual volume (RV), approximately 1100ml
what is the volume of air that can be forcibly expired after a normal expiration?
expiratory reserve volume (ERV), approximately 1200ml
volume of air that is breathed in and out during a normal respiration?
tital volume (TV), approximately 500ml
what is the volume of air that can be forcibly inspired after a normal inspiration?
inspiratory reserve (IRV), approximately 2700-2800ml
which respiratory ailments can respiratory volume tests be used to detect
chronic bronchitis and emphysema, which are often associated
what happens during chronic bronchitis
the volume of air that can be inhaled decreases due to excessive mucus production
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