RESPIRATORY SYSTEM

two air tubes that branch off of the trachea and carry air directly into the lungs.

Breathing starts with a dome-shaped muscle at the bottom of the lungs called the diaphragm

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Diaphragm

Bronchi

Trachea

sometimes called the windpipe.

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The trachea filters the air we breathe and branches into the bronchi.

the main organs of the respiratory system.

Lungs

In the lungs oxygen is taken into the body and carbon dioxide is breathed out.

Parts