Trapezius, Middle

Spinal Portion of Accessory Nerve and Twigs From C3 and C4. 

The seventh cervical and spinous processes of upper thoracic vertebrae. 

The patient prone with arm abducted to ninety degrees and elbow flexed over the edge of plinth. 

Midway between the midpoint of spine (S) of scapula and spinous process of vertebra at the same level. 

If needle electrode is inserted too deeply it will be in the rhom- 

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Falla et at, 2007) 2007 One-dimensional 8 (1 X 9) 19 Healthy Upper, middle, lower trapezius... 

Figure 2. Mean MDF value of the dominant and non-dominant trapezius at the beginning, middle and end of the...

Midway between spine (SS) and inferior angle (lA) of scapula just medial to vertebral border. The electrode will travel through the middle trapezius. 

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