frontal operculum
The term frontal operculum refers to the part of the frontal lobe that overlies the rostrodorsal portion of the insula in primates. It is defined by dissection. It is separated from the insula by the anterior two-thirds of the superior limiting sulcus. It is the part of the superior bank of the lateral fissure that extends from the plane of the central sulcus to the rostral end of the insula. In the human it is subdivided into the precentral operculum, the opercular part of the inferior frontal gyrus, the triangular part of the inferior frontal gyrus and the orbital part of the inferior frontal gyrus ( Mai-2004; Schiebler-1999 ). The frontal operculum together with the parietal operculum constitute the frontoparietal operculum. In the macaque the frontal operculum is the anteroventral part of the precentral gyrus ( Martin-2000 ). It is not present in rodents.

Also known as: frontal opercular cortexNeuroNames ID : 2268

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