what is the thorax in humans
An example of the thorax is where the lungs are located under the ribcage. pl. -Â·raxÂ·es or -Â·raÂ·cesÂ·. 1  in tetrapods, including humans,  the part of the body cavity from the neck or head to the abdomen, containing the heart, lungs, etc.; chest: in mammals, the diaphragm separates it from the abdomen.