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to breathe in oxygen and other gases
to breathe out carbon dioxide and other gases
what every cell in the body needs in order to live and function
controls how you breathe
breathing that you think about and control for a short time
the strong curved muscle attached below the lungs to the lower ribs and backbone
chest muscles and diaphragm
change the space and pressure inside your body to allow you to breathe
the respiratory system
our breathing system