Shoulder OIAN Flashcards
Deltoid-ORIGIN
Lateral clavicle, acromion and spine of scapula
Deltoid-INSERTION
Deltoid tuberosity of humerus
Deltoid-ACTION
Anterior part: flexes and medially rotates arm; Middle part: abducts arm; Posterior part: extends and laterally rotates arm
Deltoid-NERVE
Axillary
*Supraspinatus-ORIGIN
Supraspinous fossa of scapula
*Supraspinatus-INSERTION
Greater tubercle of humerus
*Supraspinatus-ACTION
Initiates abduction of arm; stabilizes shoulder joint
*Supraspinatus-NERVE
Suprascapular
*Infraspinatus-ORIGIN
Infraspinous fossa of scapula
*Infraspinatus-INSERTION
Greater tubercle of humerus
*Infraspinatus-ACTION
Laterally rotates arm; stabilizes shoulder joint
*Infraspinatus-NERVE
Suprascapular
*Teres minor-ORIGIN
Upper lateral border of scapula
*Teres minor-INSERTION
Greater tubercle of humerus
*Teres minor-ACTION
Laterally rotates arm; stabilizes shoulder joint
*Teres minor-NERVE
Axillary
*Subscapularis-ORIGIN
Subscapular fossa of scapula
*Subscapularis-INSERTION
Lesser tubercle of humerus
*Subscapularis-ACTION
Medially rotates arm; stabilizes shoulder joint
*Subscapularis-NERVE
Upper & lower subscapular
Teres major-ORIGIN
Lower lateral border of scapula
Teres major-INSERTION
Medial lip of the intertubercular groove (bicipital groove) of humerus
Teres major-ACTION
Medially rotates and adducts arm
Teres major-NERVE
Lower subscapular
