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Related articles:
Carbon cycle
Carbon dioxide
Cheyne-Stokes respiration
Oxygen
Key terms: aerobic air alveoli amount blood body brain breathing carbon dioxide carotid cause conscious contraction decreasing diaphragm drop fitness gases increasing intercostal muscles level level of carbon dioxide lower lungs mouth muscles nerve normal nose nostrils oxygen ppm pressure rate respiration roughly speech thoracic thoracic volume trachea underwater volume water Search external links cited by footnotes on Wikipedia page Breathing: |
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