Shoulder Muscle - Lower Trapezius

Muscle Origin

Spinous processes of T6–T12

Muscle Insertion

Spine of the scapula

Muscle Isolated Function

Concentric Action: Scapular depression

Muscle Integrated Function

Eccentric Action: Scapular elevation Isometric Action: Stabilizes the scapula

Muscle Innervation

Cranial nerve XI, ventral rami C2–C4