BrainRegionLAC FD HT SCN

Suprachiasmatic Nucleus

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This page covers biological details of component Suprachiasmatic Nucleus. Region is part of aHuman target integrated biological model.

• Top-down path to region: Forebrain Diencephalon -> Hypothalamus (FD.HT) -> Anterior Hypothalamus Area (LAC.FD.HT.AHT) -> Chiasmatic Area (LAC.FD.HT.CHS) -> Suprachiasmatic Nucleus (LAC.FD.HT.SCN) (see Mind Maps)
• Type: nucleus
• Brain area: Lower Brain - Autonomous Control Area
• Role: relay
• Function: Regulate the circadian cycle, 24-hour rhythms

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Components

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Component items:

• Dorsomedial Suprachiasmatic Nucleus
• Ventrolateral Suprachiasmatic Nucleus
• Ventral Suprachiasmatic Nucleus

Connectivity

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Inbound Region Connections:

Source Area	Source Region	Source Name	Type	Reference
LPC	LPC.FD.RT	Retina	excitatory-glu	Targets of retina neurons (Retina -> HT, abstract)
	LPC.FD.TH.PV	Paraventricular Nucleus of Thalamus	excitatory-glu	(unknown reference)

Outbound Region Connections:

Target Area	Target Region	Target Name	Type	Reference
LAC	LAC.FD.HT.DM	Dorsomedial Hypothalamic Nucleus	excitatory-glu	Intrahypothalamic connections important for neural control of food intake and energy balance (SCH -> DMN)
	LAC.FD.HT.PO	Preoptic Nucleus	excitatory-glu	Intrahypothalamic connections important for neural control of food intake and energy balance (SCH -> MPOA)
	LAC.FD.HT.PV	Paraventricular Nucleus	excitatory-glu	(unknown reference)
	LAC.PN.SYM.SCG	Superior Cervical Ganglion	excitatory-glu	(unknown reference)
LRC	LRC.MM.PT.NOT	Nucleus of Optic Tract	excitatory-glu	(unknown reference)

Thirdparty Circuits

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• Intrahypothalamic connections important for neural control of food intake and energy balance - see Reference

References

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• http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.122.2314rep=rep1type=pdf