spinalis

spi·na·lis

noun \spī-ˈnā-ləs, spi-ˈna-lis\

plural spi·na·les \-(ˌ)lēz\

Definition of SPINALIS

: the most medial division of the sacrospinalis situated next to the spinal column and acting to extend it or any of the three muscles making up this division: a : spinalis thoracis b : spinalis cervicis c : spinalis capitis