Origin. - From the superior border of the ligamentum nucha? and the superior spinous processes of the 2nd, 3rd, 4th, and 5th dorsal vertebrae.
Insertion. - Into the inner surface of the cartilage on the upper border of the scapula.
Action. - To draw the scapula upwards and forwards. Acting when the scapula is fixed, it would incline the neck to one side.