What organ protect the lungs and support breathing?

Answer 1

There is no organ responsible for protecting the lungs (one may argue the skin), but the ribcage plays a large (if not the largest) role in protecting the lungs.

The diaphragm is the primary muscle for breathing and the intercostal muscles (between ribs) are secondary respiratory muscles.

Answer 2

lungs are organs and they themselves support breathing that which supports life itself