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In contrast to inhalation, exhalation: select one: a. is an active process caused by decreased intrathoracic pressure. b. occurs when the diaphragm lowers and expels air from the lungs. c. is a passive process caused by increased intrathoracic pressure. d. requires muscular effort to effectively expel air from the lungs.
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In contrast to inhalation, exhalation: select one: a. is an active process caused by decreased int...
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