Biology, 02.10.2019 04:40 haydonmetzger
Exhalation begins when the elastic recoil of the chest wall and lungs occurs. internal intercostal muscles contract. inspiratory muscles relax. elastic recoil of the chest wall and lungs occurs and internal intercostal muscles contract. elastic recoil of the chest wall and lungs occurs, internal intercostal muscles contract, and inspiratory muscles relax.
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Exhalation begins when the elastic recoil of the chest wall and lungs occurs. internal intercostal m...
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