Posterior Shoulder Muscles Origins and insertions

What is the origin for the trapezius?

Upper: Inion process and superior nuchal line

Middle: Spinal processes of C1-C7 via the ligamentum nuchae
Lower: Spinal processes of T1-T-12 and the supraspinous ligament

What is the origin of the levator scapulae?

transverse processes of C1-C4

What is the origin of rhomboid minor?

spinous processes of C6-C7

What is the origin of rhomboid major?

Spinous processes of T2-T5 and supraspinous ligament

What is the origin of the latissimus dorsi?

spinous processes of T7-S5 and supraspinous ligament

External lip of the iliac crest

thoracolumbar fascia

ribs 9-12

What is the origin for teres major?

lower 1/3 of the lateral border of the scapula

What is the origin for teres minor?

upper 1/3 of the lateral border of the scapula

What is the origin of the supraspinatus?

supraspinous fossa

What is the origin of the infraspinatus

infraspinous fossa

What is the origin of the subscapularis?

subscapular fossa

What is the insertion for the trapezius?

lateral 1/3 posterior border of the clavicle

Medial aspect of the acromion process

Superior lip of the spine of the scapulae

What is the insertion for the levator scapulae?

superior angle of the scapula

What is the insertion for rhomboid major?

the medial border of the scapula below the smooth triangular space

What is the insertion for rhomboid minor?

the medial border of the scapula opposite the smooth triangular space

What is the insertion for the latissimus dorsi?

Floor of the bicipital (IT) groove

What is the insertion for teres major?

medial lip of the bicipital (IT) groove

What is the insertion for teres minor?

Interior facet of the greater tubercle

What is the insertion for infraspinatus?

middle facet of the greater tubercle

What is the insertion for supraspinatus?

superior facet of the greater tubercle

What is the insertion for subscapularis?

lesser tubercle of the humerus