Fig. 8.

This schematic drawing illustrates the structural features of muscles with their origin and insertion on the vertebral column. (a) All divisions of the longissimus cervicis (LCV) originate from the articular processes of T₁ to T6 and from the spinous process of T₆. Each division inserts on a different transverse process, from C₃ to C₆. (b) Only the two serrations of spinales et semispinales thoracis (ST) and cervicis (SC) that insert on the sixth and seventh cervical vertebra were considered in this study (arrows). SC inserts via four tendinous inscriptions on the spinous processes of the second to the fifth cervical vertebra.