back muscles

Trapezius

Big back diamond

levator scapulae

Idk side neck

Splenius capitis

Skull to cervical vertebrae

Subscapularis

Inside of scapula (deep)

Supraspinatus

Top of scapula spine

Infraspinatus

Below scapula spine

Teres major

Flare back “disconnected” armpit

Teres minor

Higher/ right above flare back “disconnected” armpit

Rhomboid major

Deep to trap, lower, larger

Rhomboid minor

Deep to trap, higher, smaller

Latissimus dorsi

Below trap, rest of back

Erector spinae

Back straps (deep)

Cervical vertebrae

Levator scapulae origin

Scapula

Levator scapulae insertion

Thoracolumbar aponeurosis

Thoracic and lumbar vertebrae

Latissimus dorsi Origin

Humerus

Latissimus dorsi Insertion

Thoracolumbar aponeurosis

Bottom back sheet