Laboratory 3.
Scapular Region Step 7.
Cut and Reflect the Trapezius Muscle
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Cut the trapezius muscle along its attachments to the spine of the scapula and acromial process of the scapula and reflect it superiorly. Now, the trapezius remains attached only to the clavicle.
Links and References:
Grant's: 6.40 and 6.41
Netter (1ed.): 401 (2ed.): 397
Rohen and Yokochi: 380 and 383