Posterior Back Muscles

Deltoid

Erector spinae

External abdominal oblique

Gluteus maximus

Gluteus medius

Infraspinatus

Internal abdominal oblique

Latissimus dorsi

Levator scapulae

Rhomboideus major

Rhomboideus minor

Serratus anterior

Serratus posterior inferior

Sternocleidomastoid

Supraspinatus

Teres major

Teres minor

Trapezius