BrainRegionLRC MM SC INT

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Intermediate Superior Colliculus

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This page covers biological details of component Intermediate Superior Colliculus. 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) -> Superior Colliculus (MM.SC) -> Intermediate Superior Colliculus (LRC.MM.SC.INT) (see Mind Maps)
  • Type: nucleus
  • Brain area: Lower Brain - Motor Reflex Area
  • Role: processor.automatic
  • Function: Sensimotor integration for orienting
  • Notes to function: Receive GABA from SNpr to gate integration

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Components

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Component items:

  • Stratum Griseum Intermediale, Lamina IV (VBA.MM.SC.SGI)
  • Stratum Album Intermediale, Lamina V (VBA.MM.SC.SAI)

Connectivity

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LRC.MM.SC.INT.dot.png

Inbound Region Connections:

Source Area Source Region Source Name Type Reference
FEC FEC.FT.SNR.DL Substantia Nigra Pars Reticulata Dorsolateral inhibitory-gaba Global visual system (SNr -> SCi, abstract)
FEC.FT.SNR.VL Substantia Nigra Pars Reticulata Ventrolateral inhibitory-gaba Saccadic Vision (BG -> SCi, abstract)
FEC.HT.TG.IPD Interpeduncular Nucleus modulatory-ach (unknown reference)
LLC LLC.HT.BPN Basilar Pontine Nuclei excitatory-glu (unknown reference)
LLC.HT.CR.EN Emboliform Nucleus excitatory-glu (unknown reference)
LMC LMC.HT.TG.PPN Pedunculopontine Tegmental Nuclei excitatory-glu Geniculate and Extyrageniculate Paths (PPN -> SC, abstract)
LPC LPC.HL.CU Cuneate Nucleus excitatory-glu (unknown reference)
LPC.HL.GR Gracile Nucleus excitatory-glu (unknown reference)
LPC.HL.TGS.STR Spinal Trigeminal Nucleus excitatory-glu (unknown reference)
LRC LRC.MM.EIC External Nucleus of Inferior Colliculus excitatory-glu Five Parallel Auditory Pathways (ICx -> SC, abstract)
LRC.MM.SC.SUP Superficial Superior Colliculus excitatory-glu Global visual system (SCs -> SCi, abstract)
NPE NPE.NC.PMC.AFEF Anterior Frontal Eye Field excitatory-glu Summary of eye movement control (FEF -> SC, abstract)

Outbound Region Connections:

Target Area Target Region Target Name Type Reference
FMM FMM.FD.TH.AD Anterodorsal Nucleus excitatory-glu Global visual system (SCi -> ATH, abstract)
LLC LLC.HT.PRF.RTMG Pontine Reticulotegmental Nucleus excitatory-glu Geniculate and Extyrageniculate Paths (SC -> RF, abstract)
LRC LRC.MM.SC.DEEP Deep Superior Colliculus excitatory-glu Global visual system (SCs -> SCi, abstract)
NCP NCP.FD.TH.LI Limitans Nucleus of Thalamus excitatory-glu Saccadic Vision (SCi -> Thalamus, abstract)
NMA NMA.FD.TH.VA Ventral Anterior Nucleus excitatory-glu Saccadic Vision (SCi -> Thalamus, abstract)
NSA NSA.FD.TH.SG Suprageniculate Nucleus of Thalamus excitatory-glu Saccadic Vision (SCi -> Thalamus, abstract)

Thirdparty Circuits

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AC=Primary Auditory Cortex,NSA.NC.TTG.A1
AM=Amygdala,FAM.FT.AM
CN=Cochlear Nucleus,LPC.HL.COCH (see Myelencephalic Sensory Nuclei)
IC=Inferior Colliculus,ABA.MM.IC (see Reflexes Nuclei of Midbrain Mesencephalon)
MGB=Medial Geniculate Body,NSA.FD.TH.MGB
OC=Superior Olivary Complex,LPC.MM.SOC
PM=Premotor Cortex,NC.PMC
SC=Superior Colliculus,MM.SC (see Reflexes Nuclei of Midbrain Mesencephalon)

BG=Basal Ganglia,FEC.FT.BG
CN=Caudate Nucleus,FEC.FT.CN (see Basal Ganglia)
CR=Cerebellum,LLC.HT.CR (see Cerebellar Complex)
FrontalCortex=Anterior Lobe,NC.LOBE.ANT
GPe=Globus Pallidus External,FEC.FT.GPE (see Basal Ganglia)
LGN=Lateral Geniculate Nucleus,NSA.FD.LGN
LIP=Lateral Intraparietal Sulcus,NPE.NC.IPS.LIP
RF=Pontine Reticular Formation,HT.RF
Retina=Retinal Nucleus,LPC.FD.RT
SCi=Superior Colliculus,MM.SC (see Reflexes Nuclei of Midbrain Mesencephalon)
SCs=Superior Colliculus,MM.SC (see Reflexes Nuclei of Midbrain Mesencephalon)
SNpr=Substantia Nigra Pars Reticulata Dorsolateral,FEC.FT.SNR.DL
STN=Subthalamic Nucleus,FEC.FD.STN (see Subthalamus Area)
Thalamus=Thalamus,FD.TH
VisualCortex=Occipital Lobe,NC.LOBE.OCC

ATH=Anterior Nucleus of Thalamus,FD.TH.AN (see Cognitive Thalamus)
BGA=Basal Ganglia,FEC.FT.BG
FrontalCortex=Anterior Lobe,NC.LOBE.ANT
LGN=Lateral Geniculate Nucleus,NSA.FD.LGN
OPN=Oculomotor Nucleus,LPC.MM.OCN
ParietalCortex=Parietal Lobe,NC.LOBE.PAR
Pulvinar=Pulvinar,FD.PV (see Sensory Thalamus)
RF=Pontine Reticular Formation,HT.RF
Retina=Retinal Nucleus,LPC.FD.RT
SCi=Superior Colliculus,MM.SC (see Reflexes Nuclei of Midbrain Mesencephalon)
SCs=Superior Colliculus,MM.SC (see Reflexes Nuclei of Midbrain Mesencephalon)
SNc=Substantia Nigra Pars Compacta Lateral,FEC.FT.SNC.LT
SNr=Substantia Nigra Pars Reticulata Dorsolateral,FEC.FT.SNR.DL
SpinalCord=Lamina IX,SC.VH.L9 (see Anterior/Ventral Horn)
Striatum=Striatum,FEC.FT.ST (see Basal Ganglia)
VisualCortex=Occipital Lobe,NC.LOBE.OCC

LGN=Lateral Geniculate Nucleus,NSA.FD.LGN
PPN=Pedunculopontine Tegmental Nuclei,LMC.HT.TG.PPN
RF=Pontine Reticular Formation,HT.RF
Retina=Retinal Nucleus,LPC.FD.RT
SC=Superior Colliculus,MM.SC (see Reflexes Nuclei of Midbrain Mesencephalon)
VC=Occipital Lobe,NC.LOBE.OCC


References

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