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Partition muscles

Medical expert of the article

Rheumatologist
, medical expert
Last reviewed: 23.04.2024

Particle muscles (mm. Multiridi) are muscle-tendon bundles that begin on the transverse processes of the underlying vertebrae and attach to the spinous processes of the overlying ones. These muscles, swinging through 2-4 vertebrae, occupy a place on the sides of the spinous processes of the vertebrae all over the spinal column, starting from the sacrum and up to the 2nd cervical vertebra. The dividing muscles lie directly in front of the semi-oval and longest muscles.

  • Function: rotate the spinal column around its longitudinal axis, participate in extension and tilt it in its direction.
  • Innervation: posterior branches of the spinal nerves (CIII-SI).
  • Blood supply: lumbar and posterior intercostal arteries, deep cervical artery.

trusted-source[1], [2], [3], [4]

Reflected pain

Trigger zones, localized in multi-parted muscles, reflect pain in the zone around the spinous processes of the proximal vertebrae. Trigger zones localized in multi-partition muscles at a level from LI to LV can also reflect pain anteriorly, into the abdomen, and it is easy to take for visceral. Partitioned trigger zones at the SI level project pain into the coccyx, causing its hyperesthesia.

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