The transverse processes of C2 (axis), which contain the foramen transversarium, are infero-lateral projections arising from the pediculo-laminar junction and lateral aspect of the interarticular area of the pedicle.  The rounded apex is equivalent to the posterior tubercle of a typical cervical vertebrae.  The muscles attaching to the transverse processes include scalenus medius, levator scapulae and splenius cervicis, which attach to the tip antero-posteriorly and the intertransversarii muscles, which attach to the superior and inferior surfaces.