Analysis of information sources in references of the Wikipedia article "더부신경" in Korean language version.
The upper trapezius elevates, the middle trapezius retracts, and the lower trapezius depresses. In unison, the pri- mary function of the trapezius is to up- wardly rotate the scapula during shoulder elevation, forming a force couple with the serratus anterior
The upper trapezius elevates, the middle trapezius retracts, and the lower trapezius depresses. In unison, the pri- mary function of the trapezius is to up- wardly rotate the scapula during shoulder elevation, forming a force couple with the serratus anterior