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100
the lungs is the biggest organ in the respiratory system
what is the biggest organ in the respiratory system
100
they breath through their nose and mouth
how do humans collect oxygen
100
gills
what do fish breath through?
100
The tube connecting the lungs to the outside of the body.
What is the trachea?
100
A sheet of muscle beneath the lungs that is essential for breathing.
What is the diaphragm?
200
The lungs rely on a vacuum within the chest, maintained by the diaphragm.
How do the lungs stay inflated?
200
The intercostal muscles
What is the name of the rib muscles that contribute to breathing