subclavius (muscle)
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sub·cla·vi·us (mus·cle)
[TA]thoracoappendicular muscle; origin, first costal cartilage; insertion, inferior surface of acromial end of clavicle; action, fixes clavicle or elevates first rib; nerve supply, subclavian from brachial plexus.
Synonym(s): musculus subclavius [TA], subclavian muscle
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