BrainRegionLLC HL IO

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Inferior Olivary Nucleus

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

  • Top-down path to region: Hindbrain Myelencephalon -> Myelencephalic Sensory Nuclei (HL.SN) -> Spinal Sensory Nuclei (HL.SS) -> Inferior Olivary Nucleus (LLC.HL.IO) (see Mind Maps)
  • Type: nucleus
  • Quality: L0
  • Brain area: Lower Brain - Locomotion Control Area (LLC)
  • Area circuit: Spinocerebellar Learning (LLL)
  • Role: processor.autonomic
  • Function: Proprioception Relay from Spinal Cord to Cerebellum




Component items:

  • Dorsal Accessory Olive
  • Dorsal Cap of Kooy
  • Medial Accessory Olive
  • Principal Olivary Nucleus
  • Rostral Portion of Medial Accessory Olive



Inbound Region Connections:

Source Area Source Region Source Name Type Role Reference
LLC LLC.FD.TH.SF Subfascicular Nucleus of Thalamus inhibitory-gaba uncertain (unknown reference)
LLC.MM.RD.PV Parvocellular Part of Red Nucleus excitatory-glu uncertain Cerebellum functional divisions (RD -> IO, abstract)
LPC LPC.SC.IZ.CCV Central Cervical Nucleus excitatory-glu uncertain (unknown reference)
LPC.SC.PH.NP Proprius Nucleus excitatory-glu uncertain Cerebellum functional divisions (SCS -> IO)
LRC LRC.MM.DSCH Darkschewitsch Nucleus excitatory-glu uncertain (unknown reference)

Outbound Region Connections:

Target Area Target Region Target Name Type Role Reference
LLC LLC.HT.CR.CC Cerebellar Lateral Lobe excitatory-glu uncertain Cerebellum functional divisions (IO -> CRP)
LLC.HT.CR.GN Globose Nucleus excitatory-glu uncertain (unknown reference)
LLC.HT.CR.PV Cerebellar Paravermis excitatory-glu uncertain Cerebellum functional divisions (IO -> CRS)
LRC LRC.HT.CR.VM Cerebellar Vermis excitatory-glu uncertain Cerebellum functional divisions (IO -> CRV)

Thirdparty Circuits


CCV=Central Cervical Nucleus,LPC.SC.IZ.CCV
CRP=Cerebellar Lateral Lobe,LLC.HT.CR.CC
CRS=Cerebellar Paravermis,LLC.HT.CR.PV
CRV=Cerebellar Vermis,LRC.HT.CR.VM
CTX=Anterior Lobe,NC.LOBE.ANT
DN=Dentate Nucleus,LLC.HT.CR.DN
FG=Fastigual Nucleus,LRC.HT.CR.FG
IO=Inferior Olivary Nucleus,LLC.HL.IO
IP=Interposed Nucleus,LLC.HT.CR.IP (see Cerebellar Complex)
LT=Dentate Nucleus,LLC.HT.CR.DN
PNN=Basilar Pontine Nuclei,LLC.HT.BPN
RD=Red Nucleus,LLC.MM.RD
RF=Pontine Reticular Formation,HT.RF
SCM=Anterior/Ventral Horn,SC.VH
SCS=Proprius Nucleus,LPC.SC.PH.NP
SCSD=Clarke Nucleus,LPC.SC.PH.CL
VB=Vestibular Nuclei,LPC.HT.VBN
VBG=Vestibular Ganglion,LPC.PN.SG.VB
VL=Ventral Lateral Nucleus,NMA.FD.TH.VL