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Multifidus thoracis

Other Terms: Musculus multifidus thoracis, Muscles multifides du thorax

Muscle parts

None

Latin name

Musculus multifidus thoracis

Latin muscle parts

None

Group

Epaxial muscle – Transversospinales – Multifidus

Etymology

The English name for this muscle is the muscle split into many parts. The word multifidus comes from the Latin multi meaning “much, or many” and the verb findere, which means “to split into many parts.” The word thoracis comes from the Greek thorakos meaning “breast plate or chest.”

Origin

Transverse processes from T1 to T12

Insertion

Posterior surface of laminae and base of spinous processes of from C7 to T11

Action

Assist with extension of the thoracic vertebral column; postural support of vertebral column; proprioceptive monitors of vertebral position.

Nerve supply

Dorsal rami of thoracic spinal nerves (L1 to T1)

Blood supply

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

Latin

Musculus multifidus thoracis

French

Muscles multifides du thorax

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