Which ligament is described as the tuberosity for the coracoclavicular ligament?

Which ligament is described as the tuberosity for the coracoclavicular ligament?

• A. Coracoclavicular ligament
• B. Round surface for ligament between coracoid process and collarbone
• C. Dorsal ulnocarpal ligament
• D. Plantar calcaneonavicular ligament

Answer: (A)

The key idea here is how ligaments attach to bones and what landmarks mark those attachments. The coracoclavicular ligament connects the coracoid process of the scapula to the clavicle and stabilizes the acromioclavicular joint. On the clavicle, the attachment area for this ligament is marked by specific rough spots—the conoid tubercle and the trapezoid line—together described as the tuberosity for the coracoclavicular ligament. So the structure described by that tuberosity name is the coracoclavicular ligament itself, since it is the ligament that attaches there. The other options point to structures in different regions (the wrist or the foot) or describe a surface rather than the ligament in question, so they don’t fit the description.

The key idea here is how ligaments attach to bones and what landmarks mark those attachments. The coracoclavicular ligament connects the coracoid process of the scapula to the clavicle and stabilizes the acromioclavicular joint. On the clavicle, the attachment area for this ligament is marked by specific rough spots—the conoid tubercle and the trapezoid line—together described as the tuberosity for the coracoclavicular ligament. So the structure described by that tuberosity name is the coracoclavicular ligament itself, since it is the ligament that attaches there.

The other options point to structures in different regions (the wrist or the foot) or describe a surface rather than the ligament in question, so they don’t fit the description.