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: processor.autonomic
Function: Regulate the circadian cycle, 24-hour rhythms

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Components

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Component items:

Connectivity

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LAC.FD.HT.SCN.dot.png

Inbound Region Connections:

Source Area	Source Region	Source Name	Type	Reference
LPC	LPC.FD.RT	Retinal Nucleus	excitatory-glu	Effect of light on pupil diameter (RET -> SCN)
NDM	NDM.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.MPO	Median 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	Food-entrainable circadian oscillator (SCN -> PVH)
	LAC.FD.HT.VLPO	Ventrolateral Preoptic Nucleus	excitatory-glu	(unknown reference)
LRC	LRC.MM.PT.NOT	Nucleus of Optic Tract	excitatory-glu	(unknown reference)