iliocostalis

(redirected from Iliocostalis thoracis)
Also found in: Medical.

iliocostalis

[‚il·ē·ō‚kä′sta·ləs]
(anatomy)
The lateral portion of the erector spinal muscle that extends the vertebral column and assists in lateral movements of the trunk.
References in periodicals archive ?
The left intercostal space between rib 6 and 7 and the paraspinal musculature (rhomboids major, spinalis thoracis, longissimus thoracis, iliocostalis thoracis, multifidus thoracis) from T4 to the iliac crest were tender to palpation with increased myofascial tension, especially on the left.