Internal occipital crest

The internal occipital crest is a bony elevation along the midline on the inner surface of the squamous part of the occipital bone. The internal occipital crest laterally delimits the vermiform impression.

Lateral to the internal occipital crest are bony elevations and depressions called, respectively, cerebral (and cerebellar) protuberances and impressions of the gyri of the brain.