Trapezius  
Latissimus dorsi  
Scapula  
Serratus posterior inferior  
Rhomboid major  
Rhomboid minor  
Spine of scapula  
Levator scapulae  
Serratus posterior superior  
Transverse cervical artery  
Dorsal scapular artery  
Superficial cervical artery  
Dorsal scapular nerve  
Dorsal scapular vein  
Acessory nerve  
Brs. from C3  
Brs. from C4