Trunk Muscles

Question 1

Trapezius (upper, Lower, middle)
O:
I:
A:
N:

Answer 1

Upper- O:nucal line, occipital protuberance; I: clavicle; A: Elevation of scapula; N:Spinal Accessory N.

Middle- O: SP T1-T6; I: Med Border of Acromion, spine of scapula; A: Retraction of scapula; N: Spinal Accessory N.

Lower- O: SP T7-T12; I: Spine of scapula; A: Scapular depression; N: Spinal Accessory N.