the.com/thorax
The body's flagship deck, where heart and lungs do their breathless work.
means The chest region between neck and abdomen, housing the heart, lungs, and the ribcage that protects them.
from From Greek thorax, meaning breastplate or chest armor — fittingly, the part the ribs themselves armor.
Bug editionInsects wear their legs and wings on it.
Ribcage tenantEncloses heart, lungs, and major vessels.
Word kinGave us thoracic surgery and thoracotomy.