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interspinales lumborum (muscles)

 

Definition: deep muscle of lower back; origin, superior margin of lumbar spinous process; insertion, inferior margin of next superior spinous process; action, extends lumbar vertebrae; nerve supply, dorsal primary rami of lumbar spinal nerves.

Synonym(s): musculus interspinalis lumborumTA, lumbar interspinal muscle

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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