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Multifidus lumborum

Other Terms: Musculus multifidus lumborum, Muscle multifide des lombes

Muscle parts

None

Latin name

Musculus multifidus lumborum

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 lumborum is from the Latin lumbus meaning “loin.”

Origin

Intermediate tubercles of sacrum, posterior superior iliac spine, and mamillary processes of lumbar vertebrae

Insertion

Posterior surface of lamina and base of spinous process from T10 to L5

Action

Extension of the lumbar vertebral column; postural support of vertebral column; proprioceptive monitors of vertebral position.

Nerve supply

Dorsal rami of lumbar and sacral spinal nerves (L2 to S3)

Blood supply

Dorsal branches of the lumbar arteries from the aorta. Dorsal branches of the lateral sacral artery from the internal iliac artery.

Latin

Musculus multifidus lumborum

French

Muscle multifide des lombes

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