medial lumbar intertransversarii (muscles)

me·di·al lum·bar in·ter·trans·ver·sa·ri·i (mus·cles)

[TA] part of deep muscles of back; origin, accessory and mammillary processes of lumbar vertebrae; insertion, corresponding processes of next superior vertebra; action, abducts lumbar vertebrae; nerve supply, dorsal primary rami of lumbar spinal nerves. Synonym(s): musculi intertransversarii mediales lumborum [TA], medial lumbar intertransverse muscles