-:
the tubes inside the lungs that lead to the alveoli.
Respiration begins in the
, where air comes into the body. Air travels through the
to the
. The
pushes up and down to fill and empty the lungs.
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Answer:
- Bronchioles
- Nose or mouth
- Pharynx, larynx and trachea
- lungs
- Diaphragm
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