that's easy the lungs
People inhale oxygen and exhale carbon dioxide.
breath in is inhale breath out is exhale
It moves inferiorly when you inhale and superiorly when you exhale.
Another word for exhale is "expire" or "brethe out"; a synonym for inhale is "inspire" or "breathe in".If you're looking for another word which means both exhaling & inhaling, you could say...
the rib cage expands,rib muscles contract and the diaphragm moves down -just took a bio test and got this answer right