Shoulder O/I

Question 1

Infraspinatus

Answer 1

O: Infraspinous fossa of scapula

I: Middle facet on posterior surface of greater tubercle of humerus

Question 2

Teres minor

Answer 2

O: Upper 2/3 of infraspinous fossa
Lateral border of scapula

I: Inferior facet of the posterior surface of greater tubercle of humerus

Question 3

Teres major

Answer 3

O: Dorsal surface of inferior angle of scapula (elongate oval area)

I: Medial lip of the intertubercular groove of the humerus

Question 4

Latissimus dorsi

Answer 4

O: Spinous processes of T7-T12, thoracolumbar fascia, iliac crest and inferior 3 or 4 ribs

I: Intertubercular groove of humerus

Question 5

Deltoid

Answer 5

O: Lateral 1/3 of clavicle, acromion, and spines of scapula

I: Deltoid tuberosity of humerus

Question 6

Pectoralis Major

Answer 6

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