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Levatores costarum breves

Other Terms: Pars breves of the levatores costarum, Levatores costarum breves, Levatores costarum breves set, Musculi levatores costarum breves, Muscle courts élévateurs des côtes

Muscle parts

None

Latin name

Musculi levatores costarum breves

Latin muscle parts

None

Group

Epaxial muscle – Intertransversarii (Muscle of thorax)

Etymology

In English, this muscle’s name is the long muscle that lifts the rib. Levatores comes from the Latin verb levare meaning “to lift.” Costarum comes from the Latin costa meaning “rib.”

Insertion

Apex of the transverse processes of the seventh cervical and first eleven thoracic vertebrae

Origin

Superior margin of each of the ribs in its posterior aspect.

Action

Elevate the ribs and possibly weakly assist with lateral flexion of the thoracic vertebrae. They are most likely proprioceptive transducers that monitor the position and movements of the vertebral column and provide feedback that influences the activity of the larger multisegmental muscles of the vertebral column.

Nerve supply

Dorsal rami of cervical and thoracic spinal nerves (C8 to T11)

Blood supply

Dorsal branches of the posterior intercostal arteries from the thoracic aorta.

Latin

Musculi levatores costarum breves

French

Muscle courts élévateurs des côtes

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