When the inspiratory muscles contract,
A. thoracic volume increases.
B. pleural pressure increases.
C. the alveolar pressure increases.
D. expiration occurs.
E. thoracic volume decreases.
A
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Fill in the blank(s) with the appropriate word(s).
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When your diaphragm contracts, it's the volume of your thoracic cavity and The volume of your abdominal cavity.
Increases, decreases Decreases, increases