basal operculum 
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                            The term basal operculum refers to the part of the inferiorr frontal gyrus (IFG) that most directly overlies the anterior insula (INSa) in the human ( Mai-1997 ). Identified by dissection, it is separated from the INS by the ventral part ofTthe anterior limiting sulcus (alms)  ( Ture-1999 ). It is not found in macaques, where the INSa is continuous with the orbital gyri (ORG) ( Mesulam-1984 ), nor in the smooth cerebral cortex (CTX) of rodents ( NeuroNames ). Updated 28 Aug 2024.      
                        
 
                        
                        Also known as: No other name for this structure has appeared in PubMed.NeuroNames ID : 1646
                     
                     
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