Muscles that move the shoulder/arm Flashcards
Pectoralis major
A: Flexes, adducts, and medially rotates shoulder
O: clavicle, sternum, ribs
I: intertubercular sulcus of humerus
Latissimus dorsi
A: adducts, extends, and medially rotates the shoulder
I: intertubercular sulcus of humerus
Deltoid
A: abduct shoulder
O: clavicle and spine of scapula
I: deltoid tuberosity of humerus
Supraspinatus*
*rotator cuff group
A: abduction of the shoulder
O: supraspinous fossa
I: greater tubercle of humerus
Infraspinatus*
*rotator cuff group
A: Laterally rotates the shoulder
O: infraspinous fossa
I: greater tubercle of humerus
Teres minor*
*rotator cuff group
A: Laterally rotates the shoulder
O: scapula
I: greater tubercle of humerus
Subscapularis*
*rotator cuff group
A: medially rotates and adducts the shoulder
O: subscapular fossa
I: lesser tubercle of humerus