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The respiratory system supplies the body with O2 (respiration). This system also disposes of CO2 (ventilation). The respiratory system houses the olfactory receptors. Gas exchange between blood and air in the alveoli(external respiration)Gas exchange between the blood and cellular tissue (internal respiration).

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9y ago
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11y ago

To inhale air

To exhale air

the hairs in the nose work as a filter which trap the dust particles and clean air goes in the lungs.

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13y ago

give five function of respiretory system

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12y ago

to aid breathing

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Q: What are five functions of the nasal cavity in he respiratory system?
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