What happens when you inhale?
AThe diaphragm expands and thoracic volume decreases.
BThe diaphragm contracts and thoracic volume decreases.
CThe diaphragm expands and thoracic volume increases.
DThe diaphragm contracts and thoracic volume increases.
AThe diaphragm expands and thoracic volume decreases.
BThe diaphragm contracts and thoracic volume decreases.
CThe diaphragm expands and thoracic volume increases.
DThe diaphragm contracts and thoracic volume increases.