Costal margin
The costal margin is the lower edge of the chest (thorax) formed by the bottom edge of the rib cage.
| 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 |
| TA | A02.3.04.006 |
| FMA | 7569 |
| Anatomical terminology | |
Sometimes referred to as the costal arch, the costal margin is the medial margin formed by the seventh to tenth ribs.
External links
- Anatomy figure: 35:01-03 at Human Anatomy Online, SUNY Downstate Medical Center—"Bony landmarks of the abdomen"
- Atlas image: abdo_wall60 at the University of Michigan Health System
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