The trapezius muscle does the following:
- Elevates the scapula.This means that the trapezius muscle lifts the shoulder girdle up (i.e. shrugging your shoulders).
- Retracts the scapula.This means that the trapezius muscle pulls the scapula, or shoulder blade, rearward such that it approaches the spine.
The muscular anatomy image shown here is in the public domain. It may have been modified by ShapeSense.com, but was originally acquired at the following address:http://en.wikipedia.org/wiki/File:Trapezius_Gray409.PNG