Pars Triangularis
Friday, July 3, 2009
Pars Triangularis
Pars triangularis is a small region in the left inferior frontal gyrus of the frontal lobe. The pars triangularis is bounded above by the inferior frontal sulcus, and below by the anterior horizontal ramus, with the anterior ascending ramus forming its caudal boundary. The pars triangularis along with the rest of the inferior frontal gyrus and the pars opercularis make up Broca's area, which is involved in language production. It has been found leftward asymmetries, that is to say larger pars triangularis region in the left hemisphere than the same region in the right hemisphere of the pars triangularis, especially in right-handed individuals and rightward asymmetries in left-handed subjects.
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