posterolateral sulcus

pos·ter·o·lat·er·al sul·cus

[TA] a longitudinal furrow on either side of the posterior median sulcus of the spinal cord marking the line of entrance of the posterior nerve roots. Synonym(s): sulcus posterolateralis [TA], dorsolateral sulcus ☆ , posterolateral groove

pos·ter·o·lat·er·al sulcus

(pos'tĕr-ō-lat'ĕr-ăl sŭl'kŭs) [TA] A longitudinal furrow on either side of the posterior median sulcus of the spinal cord marking the line of entrance of the posterior nerve roots.
Synonym(s): dorsolateral sulcus.