Origin: Transverse process
Insertion: Transverse process above
Nerve: Anterior rami of spinal nerves
Action: Lateral flexion of trunk
The Intertransversarii (Intertransversales) are small muscles placed between the transverse processes of the vertebrae.
In the cervical region they are best developed, consisting of rounded muscular and tendinous fasciculi, and are placed in pairs, passing between the anterior and the posterior tubercles respectively of the transverse processes of two contiguous vertebrae, and separated from one another by an anterior primary division of the cervical nerve, which lies in the groove between them.