Illustrated anatomical parts with images from e-Anatomy and descriptions of anatomical structures
General Anatomy >
Bones; Skeletal system >
Axial skeleton >
Thoracic skeleton >
Thoracic cage >
Costal margin; Costal arch
The costal margin (costal arch) is an arch formed by the medial margin of the cartilages of false ribs and one true rib (seventh rib to the tenth rib).
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