BrainRegionLRC MM DSCH

Darkschewitsch Nucleus

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

• Top-down path to region: Midbrain Mesencephalon -> Reflexes Nuclei of Midbrain Mesencephalon (MM.REF) -> Visual Reflexes Nuclei of Midbrain Mesencephalon (MM.REF.VIS) -> Supraoculomotor Area (VBA.MM.SOA) -> Darkschewitsch Nucleus (LRC.MM.DSCH) (see Mind Maps)
• Type: nucleus
• Brain area: Lower Brain - Motor Reflex Area
• Role: processor.automatic
• Function: Mediate the consensual pupillary light reflex
• Notes to function: Light in one eye results in pupil changes in another eye

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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	Reference
LLC	LLC.HT.CR.GN	Globose Nucleus	excitatory-glu	(unknown reference)
LPC	LPC.HT.MVBN	Medial Vestibular Nucleus	excitatory-glu	(unknown reference)
NPE	NPE.NC.PMC.AFEF	Anterior Frontal Eye Field	excitatory-glu	(unknown reference)

Outbound Region Connections:

Target Area	Target Region	Target Name	Type	Reference
LAC	LAC.MM.EWN	Edinger-Westphal Nucleus	excitatory-glu	Eye blink reflex and pupillary light reflex (SupraOculomotor -> EWN, abstract)
LLC	LLC.HL.IO	Inferior Olivary Nucleus	excitatory-glu	(unknown reference)

Thirdparty Circuits

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• Eye blink reflex and pupillary light reflex - see Reference (CP.SACCADIC-MOTOR-CONTROL)

Abducens=Abducens Nucleus,LPC.HT.ABD
Ciliary=Ciliary Ganglion,LAC.PN.PSYM.CLG
EWN=Edinger-Westphal Nucleus,LAC.MM.EWN
EYE=Eye,TARGET.TSA.EYE
Facial=Facial Motor Nucleus,LPC.HT.FCM
Oculomotor=Oculomotor Nucleus,LPC.MM.OCN
Pretectum=Pretectum,MM.PT (see Reflexes Nuclei of Midbrain Mesencephalon)
PrincipalTrigeminal=Principal Trigeminal Nucleus,LPC.HT.PN.PTR
RF=Pontine Reticular Formation,HT.RF
SpinalTrigeminal=Spinal Trigeminal Nucleus,LPC.HL.TGS.STR
SupraOculomotor=Supraoculomotor Area,VBA.MM.SOA (see Reflexes Nuclei of Midbrain Mesencephalon)
VAC=Associative Visual Cortex,NPE.NC.OCC.V3 (see Occipital Lobe)

References

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• http://neuroscience.uth.tmc.edu/s3/chapter07.html