Muscles of the Back Daniel Young, JR Isenberg, Lexi Morton
Latissimus Dorsi Function: Extends the arm and rotates the arm medially. Ex. Lifting arm to point at this PowerPoint.
Rhomboid Major Function: Retract, elevates and rotates the scapula which depresses the glenoid fossa. Ex. Shrugging sholders.
Rhomboid Minor Function: Performs the same function as the Rhomboid Major. Ex. Moving arm front to back.
Trapezius Function: Elevates and depresses the scapula, rotates the scapula, retracts the scapula. Ex. Lowering Arms, bringing arms closer to body.