The levator costarum are a group of twelve muscles on each side of the spine. They originate from the transverse processes of the seventh cervical vertebrae and upper eleven thoracic vertebrae. These muscles pass downward and outward to insert in the rib below them. These muscles are innervated by the intercostal nerves and are supplied by muscular branches of the aorta. The levator costarum raise the ribs to expand the thoracic cavity when breathing and help to bend and rotate the spinal column. Research Levator Costarum
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Abbreviations
Medicine
Research Levator Costarum
