Thorax

The middle part of an animal’s body between the head and abdomen. For vertebrate animals this is the rib cage and the organs inside it. For insects this is the part that the legs are attached to.

References

AQA

Thorax, page 118, GCSE Biology; Student Book, Collins, AQA

Thorax, page 33, GCSE Biology; The Revision Guide, CGP, AQA