basal operculum
Acronym: BOp
The term basal operculum refers to the part of the frontal lobe that overlies part of the most rostral portion of the insula in the human. Defined on the basis of dissection, it is the part of the frontal lobe separated from the underlying insula by the ventral part of the anterior limiting sulcus ( Ture-1999 ). It is composed of caudal lips of the orbital gyri ( Mai-2004 ). It is one of three parts of the opercular cortex in humans. The others are the frontoparietal operculum and the temporal operculum. It is not found in macaques, where the rostral extreme of the insula is continuous with the orbital gyri ( Mesulam-1984 ), nor in rodents, which lack an insula ( NeuroNames ).

Also known as: No other name for this structure has appeared in PubMed.NeuroNames ID : 1646

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