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Your lungs are in the thoracic cavity, which includes the chest down to the diaphragm. The lungs are located on both sides of the heart in pleural cavities.Source:http://www.dummies.com/how-to/content/what-is-in-the-thoracic-cavities.html
The lungs expand.
No, birds have lungs in their chest cavity not their wings.
chest
In your chest.
There are no muscles in the lungs that help inhale or exhale, this is the job of the diaphragm.
chest cavity
In your chest and behind your ribcage.
in the chest on both sides
Mediastinum
By the Heart
lungs