I would imagine that would be the trapezius muscles.
Levator scapulae
Trapezius 1
Levator scapulae and trapezius
The most effective exercises for strengthening the levator scapulae muscle include shoulder shrugs, neck stretches, and scapular retraction exercises.
Trapezius and Levator Scapulae
levator scapulae
The synergist of the trapezius in scapular elevation is the levator scapulae muscle. It works together with the trapezius to elevate the scapula and assist in movements like shrugging the shoulders.
The levator scapulae muscle primarily elevates and rotates the scapula (shoulder blade) downward and inward, allowing for movements such as shrugging the shoulders. It can also contribute to lateral flexion of the neck when acting unilaterally.
Incorporating the levator scapulae exercise into your workout routine can help improve shoulder stability, reduce neck and shoulder pain, and enhance overall posture by strengthening the muscles in the upper back and neck.
Raises the scapula at the Scapulothoracic Joint or inclines neck to corresponding side if the scapula is fixed
The levator scapulae is a skeletal muscle that is primarily under voluntary control. It is responsible for elevating the scapula and can be consciously contracted to facilitate movements like shrugging the shoulders. However, it can also engage involuntarily in response to certain reflexes or postural adjustments.
Upper fibres of the trapezius, rhomboid minor and major and levator scapulae.