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Libelle of note

The Angular and supramarginal gyri form with the Parietal operculum the Lobulus parietalis inferior (Inferior parietal lobule or IPL). The Gyrus angularis (Angular gyrus; BA39) can be further subdivided (see Caspers S, Amunts K, Zilles K 2012 Posterior parietal cortex. In: Mai JK, Paxinos G, eds: The Human Nervous System, 3rd ed. Elsevier, Amsterdam, pp 1036-1035). The Operculum parietale (Parietal operculum) contains four cytoarchitectonic, functionally defined areas OP1-4 (see Eickhoff S, Schleicher A, Zilles K, Amunts K 2006a The human parietal operculum. I. Cytoarchitectonic mapping of subdivisions. Cereb Cortex 16:254-267; Eickhoff S, Amunts K, Mohlberg H, Zilles K 2006b Stereotaxic maps and correlation with functional imaginig results. Cereb Cortex 16:268-279). The Gyrus supramarginalis (Supramarginal gyrus; BA40) can be further subdivided (see Caspers et al. 2012).

See note # 6006

The Gyrus temporalis superior (Superior temporal gyrus; BA22) is not a homogeneous cortical area; it contains various cytoarchitectonically and functionally distinct cortical areas. Its Pars anterior (Anterior part or Belt area) forms the Secondary auditory cortex (BA42 or A2; see Morosan P, Rademacher J, Schleicher A, et al. 2001 Human primary auditory cortex: Cytoarchitecture, subdivisions and mapping into a spatial reference system. Neuroimage 13:684-701; Zilles and Amunts 2012). Its Pars posterior (Posterior part or Wernicke's area) is a loosely defined region which comprises the Posterior part of BA22 but also parts of the Inferior parietal lobule.

See note # 6019

Usually, the Sulcus centralis does not reach the Sulcus lateralis and is separated from it by a short gyrus, the Gyrus subcentralis, which is formed by the 'fusion' of the Precentral and Postcentral gyri in their ventralmost parts. The Subcentral gyrus is delimited in front and behind by the Anterior and Posterior subcentral sulci (Dejerine 1895; Duvernoy 1992; Petrides and Pandya 2012). Also known as: Central or Rolandic operculum, and Inferior frontoparietal 'pli de passage'.