term1 Definition1term2 Definition2term3 Definition3
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Upper Trap
O: Occipital bone, nuchal ligament on upper cervical spinous processes
I: Outer third of clavical, acromion process
A: Scapular elevation and upward rotation
N: Spinal Accessory (Cranial nerve XI)
Middle Trap
O: Spinous process of C7 through T3
I: scapular spine
A: Scapular retraction
N: Spinal accessory (cranial nerve XI)
Lower Trap
O: Spinous processes of middle and lower throacic vertebrae
I: Base of scapular spine
A: Scapular depression and upward rotation
N: Spinal accessory (Cranial nerve XI)
Levator scapula
O: Transverse processes of first four cervical vertebrae
I: vertebral border of scapula betw. the superior angle and spine
A: Scapular elevation and downward rotation
N: third and fourth cervical nerves and dorsal scapular nerve
Rhomboids
O: Spinous processes of C7 through T5
I: vertebral border of scapula betw. the spine and inferior angle
A: scapular retraction, elevation, and downward rotation
N: dorsal scapular nerve
Serratus Anterior
O: Lateral surface of the upper eight ribs
I: vertebral border of the scapula, anterior surface
A: scapular protraction and upward rotation
N: long thoracic nerve
Pec Minor
O: Anterior surface, third through fifth ribs
I: Coracoid processes of the scapula
A: Scapular depression, protraction, downward rotation, and tilt
N: Medial pectoral nerve
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