Lumbar intertransversarii
Back
Deep muscle — it lies under other muscles. X-ray makes the muscles over it see-through.
- Origin
- Lateral set: transverse process of a lumbar vertebra; medial set: accessory process of a lumbar vertebra
- Insertion
- Lateral set: transverse process of the neighbouring vertebra; medial set: mammillary process of the vertebra below
- Action
- Bend the lumbar spine to the same side and help stabilise it
- Nerve supply
- Ventral rami (lateral set) and dorsal rami (medial set) of the lumbar spinal nerves
Small paired muscles at the side of the lower back linking each lumbar vertebra to the next. There are two sets: a lateral one between the transverse processes and a medial one just behind it.
Lumbar intertransversarii anatomy page →