Muscles of Posterior Torso

background G F E D C B A outline

Supraspinatus

One of the rotator cuff muscles; abducts arm

Deltoid

Teres Minor

One of the rotator cuff muscles; lateral rotation

Infraspinatus

One of the rotator cuff muscles; lateral rotation

Latissimus Dorsi

Flat broad muscle on back (dorsal) extends to insert on humerus; adduction and extension of arm; medial rotation

Trapezius

Large posterior muscle in the shape of two trapezoids; most is cut away

( ? )