/ Trapezius (Middle Fibres)
Trapezius (Middle Fibres)
- Medial third of superior nuchal line; external occipital protruberance, nuchal ligament and spinous processes of C7 – T12 vertebrae.
- Lateral third of clavicle, acromion and spine of scapula.
- Spinal root of accessory nerve (CN XI) (motor) and cervical nerves (C3 and C4) (pain and proprioception).
Arterial Supply :
- Transverse certical artery.
- Elevates scapula
- Retracts scapula
- Rotates scapula
- Middle fibers retract scapula.