| lateral lumbar intertransversarii muscles | Origin, transverse processes of lumbar vertebrae; insertion, next superior transverse process; action, abducts lumbar vertebrae; nerve supply, ventral branches of lumbar nerves. Synonym: musculi intertransversarii laterales lumborum, lateral lumbar intertransverse muscles. (05 Mar 2000) |
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| lateral lumbar intertransverse muscles | Origin, transverse processes of lumbar vertebrae; insertion, next superior transverse process; action, abducts lumbar vertebrae; nerve supply, ventral branches of lumbar nerves. Synonym: musculi intertransversarii laterales lumborum, lateral lumbar intertransverse muscles. (05 Mar 2000) |
| lateral part of posterior cervical intertransversarii muscles | lateral part of posterior cervical intertransversarii muscles |
| levatores costarum muscles | musculus levator costae, elevator muscle of rib, musculi levatores costarum |
| long levatores costarum muscles | Insertion, the second rib below their origin; action, raise ribs; nerve supply, intercostal. Synonym: musculi levatores costarum longi. (05 Mar 2000) |
| lumbar interspinales muscles | 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: musculus interspinalis lumborum, lumbar interspinal muscle. (05 Mar 2000) |
| lumbar rotator muscles | The rotator muscles of the lumbar vertebrae. Synonym: musculi rotatores lumborum, lumbar rotator muscles. (05 Mar 2000) |