| Costal margin | |
|---|---|
 Anterior surface of sternum and costal cartilages. (The costal margin forms a large upside-down V on the inferior border.) | |
| Details | |
| Identifiers | |
| Latin | arcus costalis |
| TA98 | A02.3.04.006 |
| TA2 | 1101 |
| FMA | 7569 |
| Anatomical terminology | |
The costal margin, also known as the costal arch,[1] is the lower edge of the chest (thorax) formed by the bottom edge of the rib cage.
- ^ Talucci, R. C.; Webb, W. R. (March 1983). "Costal chondritis: the costal arch". The Annals of Thoracic Surgery. 35 (3): 318–321. doi:10.1016/s0003-4975(10)61566-4. ISSN 0003-4975. PMID 6830368.