paracentral sulcus paracentral sulcus the paracentral sulcus is a sulcus of the brain. it forms the paracentral lobule's anterior border. it is part of the cingulate sulcus. paracentral sulcusmedial surface of left cerebral hemisphere. (paracentral sulcus shaded in red.)detailsidentifierslatinsulcus paracentralisneuronames128ta98a14.1.09.208ta25460fma83762anatomical terms of neuroanatomy gallery medial surface of left cerebral hemisphere. (cingulate sulcus shaded in red.)