marginal sulcus


marginal sulcus

[TA] the sulcus located immediately caudal to the posterior paracentral gyrus: the posterior ascending portion of the cingulate sulcus; may also be considered the marginal ramus of the cingulate sulcus. Synonym(s): ramus marginalis [TA], sulcus marginalis [TA], marginal branch [TA] of cingulate sulcus