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Costal cartilage 6
Other Terms: Costal cartilage of rib, Cartilago costalis, Cartilage costal
The sixth costal cartilage is longer and narrower than its predecessor. It ascends obliquely upward from the sixth rib to attach to the sternum via a synovial joint. The pectoralis major muscle attaches on its medial aspect anteriorly, while the transversus thoracis muscle attaches to its posterior surface.