The trapezius muscle is composed of three main parts: the upper, middle, and lower. Each of them exhibits different level of excitability. When stabilizing the scapula, the upper trapezius is often easily stimulated to work, while the lower part is hard to engage. One of the reasons for this phenomenon is prolonged sitting, which promotes tension in the upper trapezius while relaxing the lower one. That is why rehabilitation plans for various issues frequently aim to activate the lower trapezius

The trapezius muscle is composed of three main parts; the upper, middle and lower. Thanks for details and and beautiful animation credits @anatomy.of.motion #drmuhammedziya #humananatomy #trapezius #muscle #excercise #discoverme | Dr. Muhammed Ziya