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Step five: grab diaphragm (big balloon) and pull downwards and upwards to simulate breathing.

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Step four: place the diaphragm (big balloon) around the open side of the thoracic cavity (cup).

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Step three: place the trachea (clear tube) pointed side upwards into the thoracic cavity (cup with hole).

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Step two: attach the trachea (clear tube) to the bronchi (black contraption).

# data[].attributes.body
Step one: attach lungs (2 small balloons) to the bronchi (black contraption).