Muscles of Pectoral Girdle

pectoralis minor origin

3rd to 5th ribs

pectoralis minor insertion

coracoid process

pectoralis minor innervation

pectoral nerve

pectoralis minor action

depress scapula

serratus anterior origin

1st to 9th ribs

serratus anterior insertion

scapula

serratus anterior innervation

long thoracic nerve

serratus anterior action

draw scapula laterally forward

trapezius origin

spinous process C1-T12

trapezius insertion

scapula and clavicle

trapezius innervation

accessory nerve

trapezius action

move scapula superiorly, medially, and inferiorly

rhomboideus major origin

T1-T4

rhomboideus major insertion

medial border of scapula (below scapular spine)rh

rhomboideus major innervation

dorsal scapular nerve

rhomboideus major action

steady and retract scapula

rhomboideus minor origin

C6-C7

rhomboideus minor insertion

medial border of scapula (above scapular spine)

rhomboideus minor innervation

dorsal scapular nerve

rhomboideus minor action

steady and retract scapula

levator scapulae orgin

C1-C4

levator scapulae insertion

superior angle of scapula

levator scapulae innervation

dorsal scapular

levator scapulae action

elevate scapula