What does the plural term "thoraces" refer to?

The plural term "thoraces" refers specifically to multiple chests. The term originates from the Greek word "thorax," which denotes the chest area in anatomical terms. In human anatomy, the thorax is the part of the body between the neck and the abdomen, encompassing vital organs such as the heart and lungs, all contained within the rib cage.

Understanding that "thoraces" is the plural form highlights its reference to more than one chest, which is crucial in clinical and anatomical discussions. The other terms listed, such as sternums (the breastbone), shoulders, and abdomens (the area between the chest and pelvis), do not correspond to the definition of "thoraces," making them unsuitable in the context of this question.