Cervical vertebrae have a bifurcated spinous process.
C-1 (Atlas)
You are feeling the spinous process of your vertebrae.
the vertebral arch
Spinous process
In the cervical spine, the C2-C6 vertebrae generally have bifid spinous proceses.
the transverse process and the articular process also spinous process
spinous process
spinous process and transverse process
The first cervical vertebra (C1), also known as the atlas, does not have a body or a spinous process. It has a ring-like structure that articulates with the skull and the axis (C2 vertebra).
spinous process, facets, and demifacets
Because the most distinctive characteristic of this vertebra is the existence of a long and prominent spinous process.