Supplementary Motor Area

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This page covers biological details of component Supplementary Motor Area. Region is part of aHuman target integrated biological model.

Top-down path to region: Cerebral Cortex -> Anterior Lobe (NC.LOBE.ANT) -> Supplementary Motor Cortex (NMA.NC.SMC) -> Supplementary Motor Area (NMA.NC.SMC.F3) (see Mind Maps)
Type: cortex
Brain area: Neocortical Brain - Motor Aggregation Area
Brodmann ID: 06
Role: cortex.generic
Function: Movement execution; Numerical and verbal mental-operation tasks
Notes to function: from TH/VLo from from putamen; F1/F2/F4/24d - strong; F6/F7/F5/24c - modest; no input from the prefrontal lobe

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Components

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Connectivity

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NMA.NC.SMC.F3.dot.png

Inbound Region Connections:

Source Area	Source Region	Source Name	Type	Reference
NMA	NMA.FD.TH.VA	Ventral Anterior Nucleus	excitatory-glu	Thalamocortical relationships (VA -> pVA, abstract)
	NMA.NC.PMC.F4	Ventral Caudal Premotor Cortex	feedforward-glu	(unknown reference)

Outbound Region Connections:

Target Area	Target Region	Target Name	Type	Reference
FEC	FEC.FT.PU.MED	Dorsal Putamen Medial	excitatory-glu	Global visual system (FrontalCortex -> BGA, abstract)
LLC	LLC.HT.PRF.PDT	Pontine Reticulotegmental Nucleus	excitatory-glu	Vocal Control (M2 -> RF, abstract)
LRC	LRC.HL.PRF.GCR	Gigantocellular Reticular Nucleus	excitatory-glu	(unknown reference)
	LRC.HT.PRF.CRF	Caudal Pontine Reticular Nucleus	excitatory-glu	Vocal Control (M2 -> RF, abstract)
NMA	NMA.NC.PMC.F2	Dorsal Caudal Premotor Cortex	feedforward-glu	3 Visual Cortex Paths (pre-SMA -> dPM, abstract)
	NMA.NC.PMC.F5	Ventral Rostral Premotor Cortex	feedforward-glu	3 Visual Cortex Paths (pre-SMA -> vPM, abstract)