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5 terms

B-class ch. 16

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Bronchoconstriction
Constriction, or blockage, of the bronchi that lead from the trachea to the lungs.
Exhalation
Another term for expiration.
Expiration
A passive process in which the intercostal (rib) muscles and the diaphragm relax, causing the chest cavity to decrease in size and forcing air from the lungs.
Inhalation
Another term for inspiration.
Inspiration
An active process in which the intercostal muscles and the diaphragm contract, expanding the size of the chest cavity and causing air to flow into the lungs.