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Medial lumbar intertransversarii

Other Terms: Intertransversarii lumborum medialis, Medial lumbar intertransversarii, Medial lumbar intertransversarii set, Set of medial lumbar intertransversarii, Musculi intertransversarii mediales lumborum, Muscle intertransversaires médiaux des lombes

Muscle parts

None

Latin name

Musculi intertransversarii mediales lumborum

Latin muscle parts

None

Group

Epaxial muscle – Intertransversarii

Etymology

In English, this muscle’s name is the middle 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 medialis is derived from the Latin medius meaning “middle.”

Origin

Accessory processes of lumbar vertebrae two through five

Insertion

Mamillary processes of lumbar vertebrae one through four

Action

Possibly weakly assist with extension 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

Dorsal rami of lumbar spinal nerves (L1 to L5)

Blood supply

Lumbar arteries from the abdominal aorta.

Latin

Musculi intertransversarii mediales lumborum

French

Muscle intertransversaires médiaux des lombes

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