BrainRegionNPE NC BRA PT

Broca's Area Pars Triangularis

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This page covers biological details of component Broca's Area Pars Triangularis. Region is part of aHuman target integrated biological model.

• Top-down path to region: Cerebral Cortex -> Anterior Lobe (NC.LOBE.ANT) -> Prefrontal Cortex (NC.AL.PFC) -> Lateral Prefrontal Cortex (NC.AL.LPFC) -> Ventrolateral Prefrontal Cortex (NC.AL.VLPFC) -> Broca's Area (NPE.NC.PFC.BRA) -> Broca's Area Pars Triangularis (NPE.NC.BRA.PT) (see Mind Maps)
• Type: cortex
• Quality: L0
• Brain area: Neocortical Brain - Unimodal Execution Area (NPE)
• Area circuit: Execution by Auditory Inputs (AES)
• Brodmann ID: 45
• Role: cortex.generic
• Function: Language production and prefrontal associational integration, propositional language comprehension
• Notes to function:
  • Triangular Inferior Frontal Gyrus, switching between semantic sub-categories in word retrieval

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Components

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• no child items defined

Connectivity

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Inbound Region Connections:

Source Area	Source Region	Source Name	Type	Role	Reference
NSA	NSA.NC.STG.A3	Wernicke's area A3	feedforward-glu	uncertain	Cortical Auditory System (STS22 -> IFC45, abstract)
	NSA.NC.STG.A4	Wernicke's area A4	feedforward-glu	uncertain	Language-Related Regions (pSTC -> BA44, abstract)

Outbound Region Connections:

Target Area	Target Region	Target Name	Type	Role	Reference
NPE	NPE.NC.IPL.SMW	Supramarginal Wernike Cortex	feedforward-glu	uncertain	Cortical Auditory System (IFC44 -> IPL40, abstract)

Thirdparty Circuits

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• Cortical Auditory System - see Reference (CP.CORTICAL-AUDITORY-SYSTEM)

AC22=Wernicke's area A4,NSA.NC.STG.A4
Belt42=Auditory Association Area,NSA.NC.TTG.A2
Core41=Primary Auditory Cortex,NSA.NC.TTG.A1
IFC44=Broca's Area,NPE.NC.PFC.BRA (see Lateral Prefrontal Cortex)
IFC45=Broca's Area,NPE.NC.PFC.BRA (see Lateral Prefrontal Cortex)
IPL40=Supramarginal Gyrus,NC.IPL.SMG (see Inferior Parietal Lobule)
PMC6=Ventral Premotor Cortex,MCA.NC.VPMC (see Premotor Cortex)
PMC8=Anterior Frontal Eye Field,NPE.NC.PMC.AFEF
STS22=Wernicke's area A3,NSA.NC.STG.A3

References

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• http://www.nature.com/neuro/journal/v12/n6/fig_tab/nn.2331_F5.html