[1] The only exception is the first rib, which has a synchondrosis joint since the cartilage is directly united with the sternum.

[1] The sternocostal joints are important for thoracic wall mobility.

[2] The ligaments connecting them are: Ankylosis, joint stiffness caused by ossification, may occur at the sternocostal joints.

[3] This article incorporates text in the public domain from page 203 of the 20th edition of Gray's Anatomy (1918)

This human musculoskeletal system article is a stub.