Muscles that Move the Pectoral Girdle + Stabilize the Scapula Flashcards
trapezius - actions
Superior fibers = elevate + superiorly rotate scapula
Middle fibers = retract scapula
Inferior fibers = depress scapula
trapezius - innervation
accessory nerve (CN XI)
levator scapulae - action
elevates + inferiorly rotates scapula
levator scapulae - insertion
superior medial border of scapula
levator scapulae - innervation
dorsal scapular nerve
rhomboid major - action
elevates, retracts, and inferiorly rotates capula
rhomboid major - insertion
medial border of scapula
rhomboid major - innervation
dorsal scapular nerve
rhomboid minor - action
elevates, retracts, inferiorly rotates scapula
rhomboid minor - insertion
superior medial border of scapula
rhomboid minor - innervation
dorsal scapular nerve
pectoralis minor - action
protracts and depresses scapula
pectoralis minor - insertion
coracoid process
pectoralis minor - innervation
medial pectoral nerve
serratus anterior - action
protracts and superiorly rotates scapula; stabilizes scapula
serratus anterior - insertion
anterior medial border of scapula
serratus anterior - innervation
long thoracic nerve
subclavius - action
stabilizes and depresses clavicle
subclavius - innervation
nerve to subclavius
levator scapulae - blood supply
dorsal scapular artery
rhomboid major and minor - blood supply
dorsal scapular artery
trapezius - blood supply
dorsal scapular artery
latissimus dorsi - blood supply
thoracodorsal artery
serratus anterior - blood supply
lateral thoracic artery and superior thoracic artery
