GLOSSARY

The levator scapulae is a slender muscle at the back and side of the neck, running from the upper cervical vertebrae to the superior angle of the scapula.

Attachments and Innervation

• Origin: the transverse processes of C1–C4.
• Insertion: the superior angle and upper medial border of the scapula.
• Nerve: the dorsal scapular nerve (C5) and branches of C3 and C4.

Actions

• Elevation of the scapula together with the upper trapezius.
• Downward rotation of the scapula.
• When the scapula is fixed: lateral flexion and rotation of the neck to the same side, and assisting neck extension.

Clinical Application