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the area bellow the nasal cavities that is common to both the digestive and respiratory systems
A substance that decreases the surface tension in the alveoli, allowing the lungs to expand. The substance in the fluid lining the alveoli that prevents their collapse
is the active phase of breathing. the phase of pulmoary ventilations in which the diaphragm contracts
The amount of air inhaled and exhaled in a normal, resting breath, typically about 500 mL.
the breathing pattern that cause hypocapnia and resulting from respiratory obstruction
which of the following terms does not apply to the cells that line the conducting passages of the respiratory tract
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