Question

which cervical vertebrae does not have a spinous process? axis atlas c6 c3

Explanation:

The atlas (C1) is a unique cervical vertebra. It lacks a spinous process. Instead, it has anterior and posterior tubercles. The axis (C2) has a prominent dens (odontoid process) which is a modified body, but it does have a spinous process. C3 and C6 are typical cervical vertebrae and have spinous processes (C6 may have a more prominent spinous process which can be felt as a bony prominence at the base of the neck).

Answer:

Atlas