the.com/thoracic
the bony cage that lets you breathe while guarding the engine that keeps you alive
vertebrae countTwelve spinal bones anchor your entire rib cage
least flexibleRibs limit its rotation more than any spine region
hidden ductLargest lymph vessel in the body lives here
diaphragm splitSeparates the chest cavity from the abdomen below
surgery nameThoracotomy cracks it open to reach heart and lungs