Muscles from axial skeleton to shoulder girdle Flashcards
Trapezius origin
ligamentum niche, spines of C7 and T1-T12
Trapezius insertion
spine of scapula, acromion process, lateral 1/3 clavicle
Trapezius action
retracts scapula; upper elevates & lower depresses scapula
Trapezius nerve
spinal accessory nerve (CN XI)
Levator Scapulae origin
C1-C4 (transverse processes)
Levator Scapulae insertion
medial border of scapula
Levator Scapulae action
elevates scapula
Levator Scapulae nerve
dorsal scapular
Rhomboids Major insertion
medial border of scapula
Rhomboids Major origin
T2-T5
Rhomboids Major action
retract, elevate
Rhomboids Major nerve
dorsal scapular
Rhomboids minor origin
C7-T1
Rhomboids minor insertion
medial border of scapula
rhomboids minor action
retract, elevate
rhomboids minor nerve
dorsal scapular
serratus anterior origin
lateral surface of ribs 1-8
serratus anterior insertion
medial border of scapula
serratus anterior action
protracts, laterally rotates scapula
serratus anterior nerve
long thoracic
pectoralis minor origin
ribs 3-5
pectoralis minor insertion
coracoid process
pectoralis minor action
protraction
pectoralis minor nerve
medial pectoral
