Rib cage:The structure formed by thethoracic vertebrae和肋骨,sternum(breastbone), and the costal cartilages (that attach the ribs to the sternum).
A cage is an enclosure made of "open work" that usually houses animals. Therib cagewas thought to resemble an animal cage (although the largest "animals" it holds are the heart andlungs).
Theribcage is also called thethoracic cage.
