iliocostalis muscle

il·i·o·cos·ta·lis mus·cle

(il'ē-ō-kos-tā'lis mŭs'ĕl) The lateral division of the erector spinae, having three subdivisions: iliocostalis lumborum, iliocostalis thoracis, and iliocostalis cervicis.
Synonym(s): musculus iliocostalis [TA] , iliocostal muscle.