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sciencerockgirl sciencerockgirl
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10 years ago
The sequence of events on exhalation is listed below:
1)air pressure in thoracic cavity increases
2)diaphragm and rib (intercostal) muscles relax
3)high levels of carbon dioxide are detected by nervous system receptors
4)Rib cage moves down and in; diaphragm returns to normal position

The order in which these events listed above would occur is ______, ______, ______, and ______
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wrote...
10 years ago
Try this:

3 ... 2 ... 1 ... 4
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