Question

the first cervical vertebra is called the
primum.
axis.
apex.
atlas.
cervix.

Explanation:

In human anatomy, the first cervical vertebra is known as the atlas. It supports the head and allows for nodding - like motion. The axis is the second cervical vertebra, the apex is a general term for a pointed end, the cervix is related to the lower part of the uterus in females and not a vertebra name, and "primum" is not a name for the first cervical vertebra.

Answer:

D. atlas