Triangular processes occurred in both bones of pairs 58 times from a total of 334 paired scapulae. |
In the shoulder girdle, the serratus anterior, upper and lower trapezius, levator scapulae and rhomboid muscles are involved. |
The large trapezius muscle extends from the base of the skull to the last thoracic vertebrae, and from the spinal column to the scapulae. |