Lifecraft
Shoulder

Shoulder

Middle Trapezius

Musculus trapezius (pars transversa)

Draws the shoulder blades back during rowing movements.

Function
Scapular retraction (drawing the shoulder blades together).
Origin
Spinous processes of the T1–T5 vertebrae.
Insertion
Acromion and spine of the scapula.

Synergists / Antagonists

Exercises that train this muscle