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Medicine, 20.07.2019 04:30 serg42

Which of the following best describes why thoracic volume decreases during normal exhalation?
1. elastic recoil of the lungs
2. increased airway resistance
3. contraction of rectus abdominis
4. contraction of the diaphragm

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Which of the following best describes why thoracic volume decreases during normal exhalation?
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