Q: Is a thorax the chest region of the body between the neck and the abdomen? ¶
A: Yes, and along with its internal organs and other contents.
Q: Is a thorax numbered in ascending order from 1-12? ¶
Q: Is a thorax the region of the body formed by the sternum? ¶
A: Yes, and the thoracic vertebrae, and the ribs.
Q: Is a thorax the condition where air or gas can build up in the pleural space? ¶
Q: Is a thorax one of the three main divisions of the creature's body? ¶
A: Yes, and each of which is in turn composed of multiple segments.
Q: Is a thorax composed of four segments? ¶
A: Yes, and is therefore typically called the mesosoma to distinguish it from the "thorax" of other insects.