It is one surface of the cerebral cortex.
SULCUS: "Fissure is also like a sulcus."
Cite this page: N., Sam M.S., "SULCUS," in PsychologyDictionary.org, April 13, 2013, https://psychologydictionary.org/sulcus/ (accessed June 24, 2022).
It is one surface of the cerebral cortex.