Shoulder O/I Flashcards
Infraspinatus
O: Infraspinous fossa of scapula
I: Middle facet on posterior surface of greater tubercle of humerus
Teres minor
O: Upper 2/3 of infraspinous fossa
Lateral border of scapula
I: Inferior facet of the posterior surface of greater tubercle of humerus
Teres major
O: Dorsal surface of inferior angle of scapula (elongate oval area)
I: Medial lip of the intertubercular groove of the humerus
Latissimus dorsi
O: Spinous processes of T7-T12, thoracolumbar fascia, iliac crest and inferior 3 or 4 ribs
I: Intertubercular groove of humerus
Deltoid
O: Lateral 1/3 of clavicle, acromion, and spines of scapula
I: Deltoid tuberosity of humerus
Pectoralis Major
O: Clavicular head: Anterior surface of medial 1/2 of clavicle
Sterno-costal head: Anterior surface of sternum
Sternal head of sixth rib
Aponeurosis of external oblique
I: Clavicular head: Lateral lip of intertubecular groove of humerus
Sterno-costal head: Lateral lip of intertubecular groove of humerus