OIAs of pectoral girdle and upper limbs

rhomboid

trapezius action

elevates, depresses, rotates, and retracts scapula

rhomboid major origin

spinous processes of upper thoracic vertebrae

rhomboid major insertion

vertebral border of scapula (below spine)

Rhomboid major and minor action

rotates and retracts scapula

Rhomboid minor origin

spinous process of lower cervical and upper thoracic vertebrae

rhomboid minor insertion

vertebral border of scapula (at base of spine)

levator scapulae origin

transverse process of cervical vertebrae

levator scapulae insertion

vertebral border of scapula (spine above)

levator scapulae action

elevates scapula

pectoralis minor origin

anterior surface of upper-middle ribs

pectoralis minor insertion

coracoid process of scapula

pectoralis minor action

depresses, protracts, and rotates scapula

serratus anterior origin

outer surface of ribs 1-9

serratus anterior insertion

entire length of vertebral border of scapula

serratus anterior action

protracts and rotates scapula