This is the most prominent projection or apex of the cruciform eminence. This is the point where the falx cerebri meets the falx cerebelli and the tentorium cerebelli to attach to the bone.

Internal comes from the Latin internus meaning inward. This takes its origin from the Greek in meaning into. Occiput is Latin for the back portion of the head. It is derived from the prefix ob- meaning on, against, or opposite, combined with the Latin caput meaning head. Protuberance arises from the Latin tuber meaning a bump and pro denoting in front of something.

Protuberantia occipitalis interna

Protubérance occipitale interne