Your body works - you breathe

5 important questions on Your body works - you breathe

How does the oxygen end up in your blood?

Oxygen flows via the nasal cavity into the alveoli

Gas exchange takes place in the alveoli:

Oxygen diffuses from the air into the blood

What clean and moisest the air

Mucous membranes in the nasal cavity
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What happen when you inhaling with your nose

The airm is warmed and you smell better

Dust and pathogens stick to the mucus, which is then

Swept towards the pharynx by the cilia

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