Which ligaments comprise the coracoclavicular ligament?

The coracoclavicular ligament is made up of two distinct ligaments: the conoid ligament and the trapezoid ligament. These ligaments connect the coracoid process of the scapula to the clavicle, providing stability to the acromioclavicular joint.

The conoid ligament has a conical shape and primarily provides vertical stability, while the trapezoid ligament, which is broader and more trapezoidal in shape, offers additional support and helps prevent excessive movement of the clavicle. Together, they play a critical role in maintaining the structural integrity of the shoulder girdle, especially during activities that involve overhead movements or heavy lifting.

The other options listed do not accurately describe the components of the coracoclavicular ligament; therefore, they do not reflect the anatomical reality of these important ligaments in shoulder stability and function.