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Intertransversarii laterales lumborum - dorsal ...

Other Terms: intertransversarii lumborum lateralis

Muscle parts

Dorsal parts; Ventral parts

Latin name

Musculi intertransversarii lateralis lumborum

Latin muscle parts

Partes dorsales; Partes ventrales


Abdominal wall – lateral musculature – internal layer and middle layers


In English, this muscle’s name is the front, side muscle between the crosswise processes of the loin vertebrae. The word intertransversarii comes from the Latin inter meaning “between” and the Latin term transversus for “crosswise,” which comes from Latin trans meaning “across, beyond, or through” and the Latin verb vertere meaning “to turn.” It is used in reference to the transverse processes of the vertebrae. Lumborum comes from the Latin lumbus for “loin.” The Latin term anterior is derived from the Latin ante meaning “before.” The Latin term lateral is derived from the Latin lata meaning “side.”


Superior border of the transverse process of each of the lumbar vertebrae


Inferior border of the transverse process of each of the lumbar vertebrae


Possibly weakly assist with lateral flexion of the lumbar vertebrae. They are most likely proprioceptive transducers that monitor the position and movements of the vertebral column and provide feedback that influences the activity of the larger multisegmental muscles of the vertebral column.

Nerve supply

Small branches of ventral rami of spinal nerves L1 to L5

Blood supply

Lumbar arteries from the aorta.


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