What are the neutralizer muscles of the shoulder girdle during downward rotation and retraction?

During downward rotation and retraction of the shoulder girdle, the neutralizer muscles include the rhomboids, which help retract the scapulae, and the pectoralis minor, which assists in downward rotation. Additionally, the lower trapezius plays a role in stabilizing the scapula during these movements. These muscles work in concert to ensure proper alignment and function of the shoulder girdle.