The pleural cavities, ventral and thoracic
Lungs
The heart, lungs, and small intestine would be found in the Ventral Body Cavity. Check this site out for a look at different cavities: http://en.wikipedia.org/wiki/Ventral_body_cavity
Lungs are located in the pleural cavities which are part of the thoracic cavity.
The two largest body cavities are the thoracic and abdominal cavities.
CHEST CAVITY!!! =]
lungs
The lungs
Rhinopneumontis is found in horses and is caused by the equine herpes virus. It causes swelling in the nasal cavities and lungs. It is treatable and if caught early, is not fatal.
The pleural cavities.
In your mouth cavities are found in your teeth if you do not look after them properly, these are called 'dental cares'.
You can find cavities in many places, here are a few examples. Cavities can be found in teeth, they are found between the outside wall and inside wall of a building and they can be found in natural rock formations.
The nostrils serves as the entrance to your nasal cavities. After air has reached the nasal cavity, it will continue to the lungs.