Jisho

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Noun
1. pars triangularis; triangular area; triangular part of inferior frontal gyrusSee also 下前頭回
Wikipedia definition
2. Triangular part of inferior frontal gyrusPars triangularis is a region of the human cortex, located in the inferior frontal gyrus of the frontal lobe in the corresponding Brodmann area 45. The inferior frontal sulcus forms the superior boundary, the anterior horizontal ramus provides its inferior boundary, and the caudal boundary is made by the anterior ascending ramus (ascending branch of lateral sulcus).
Read “Triangular part of inferior frontal gyrus” on English Wikipedia
Read “三角部” on Japanese Wikipedia
Read “Triangular part of inferior frontal gyrus” on DBpedia

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