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Inhaling and exhaling.Breathing in and out.

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To oxygenate blood (hemoglobin) and to remove carbon dioxide from blood

(hemoglobin).

But actually the respiratory system has many functions:

1. Exchanges gases (as stated above)

2. Homeostatic regulation of the body's pH through the regulation of CO2

3. Protection from inhaled patholgens and irritating substances

4. Vocalization.

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Anabelle Hand

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3y ago

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