iliocostalis การใช้

The muscular fibers form a large fleshy mass that splits, in the upper lumbar region, into three columns, viz ., a lateral ( Iliocostalis ), an intermediate ( Longissimus ), and a medial ( Spinalis ).
In the lumbar region, where it is as yet blended with the iliocostalis lumborum, some of its fibers are attached to the whole length of the posterior surfaces of the transverse processes and the accessory processes of the lumbar vertebr? and to the anterior layer of the lumbodorsal fascia.