Costal arch
Arcus costalis
- Synonym: Costal margin
- Related terms: Costal margin; Costal arch
Definition
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).
References
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).
