Upper back, Shoulder & Arm

trigger point section diagram for the upper back, shoulder, and arm.

Essential pain patterns are

listed like this.

Upper Thoracic Back Pain

Levator scapulae

Trapezius (TrP2 & TrP3)

Trapezius (TrP5)

Splenius cervicis

Triceps brachii & TrP5

Back of Shoulder

Levator scapulae

Serratus posterior superior

Latissimus dorsi

Triceps brachii (TrP1)

Trapezius (TrP3 & TrP6)

Iliocostalis thoracis

Back of Arm Pain

Triceps brachii (TrP1 & TrP3)

Latissimus dorsi

Serratus posterior superior

Coracobrachialis

Scalenus minimus (B in the picture)

Mid-Thoracic Back Pain

Latissimus dorsi

Levator scapulae

Iliocostalis thoracis

Serratus posterior superior

Trapezius (TrP4)

Trapezius (TrP5)

Front of Shoulder Pain

Pectoralis major (2nd picture)

Pectoralis minor

Coracobrachialis

Latissimus dorsi

Front of Arm Pain

Triceps brachii

Scalenus minimus (illustration B)