Tags: Anatomical Structure, Bone.
On the medial part of the clavicle is a broad rough surface the costal tuberosity (rhomboid impression) rather more than 2 cm. in length for the attachment of the costoclavicular ligament. The rest of this surface is occupied by a groove which gives attachment to the Subclavius; the coracoclavicular fascia which splits to enclose the muscle is attached to the margins of the groove.
