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Respiratory System (differences between the right and left lung and right…
Respiratory System
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respiratory tract;
Lower
trachea, the bronchi and bronchioles, and the alveoli, which make up the lungs
Upper
nose or nostrils, nasal cavity, mouth, throat (pharynx), and voice box (larynx)
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breathing mechanism;
occurs when the contraction or relaxation of muscles around the lungs changes the total volume of air within the air passages (bronchi, bronchioles) inside the lungs
. Inspiration occurs when the inspiratory muscles—that is, the diaphragm and the external intercostal muscles—contract.
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