o - Extensive medial attachment from the base of the medial 1/3 of the superior nuchal line and the occipital bone
• Spinous processes of C7 to T12 and the intervening supraspinous ligament
i - converge to form a tendon that attaches to inferior surface of the medial end of the spine of the scapula
a - depression, retraction & lateral rotation of scapula
ns - Motor: Spinal part of cranial nerve XI (‘Accessory’ nerve)
Sensory: Ventral rami C3, C4