BrainRegionLPC SC VH ONF

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Onuf's Nucleus

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

  • Top-down path to region: Spinal Cord -> Anterior/Ventral Horn (SC.VH) -> Lamina IX (SC.VH.L9) -> Onuf's Nucleus (LPC.SC.VH.ONF) (see Mind Maps)
  • Type: nucleus
  • Brain area: Lower Brain - Peripheral Control Area
  • Role: flexor.nucleus
  • Function: Maintenance of urination and defecation, muscular contraction during orgasm
  • Notes to function: From Barrington's Nucleus




  • no child items defined



Inbound Region Connections:

Source Area Source Region Source Name Type Reference
LAC LAC.FD.HT.PV Paraventricular Nucleus excitatory-glu (unknown reference)
LAC.HT.BR Barrington's Nucleus excitatory-glu Schematic overview of spinobulbospinal micturition reflex pathway (BAR -> ONF)
LRC LRC.HL.RA Retroambigualis Nucleus excitatory-glu (unknown reference)
NMA NMA.NC.MC Motor Cortex excitatory-glu Cerebellum functional divisions (CTX -> SCM, abstract)

Outbound Region Connections:

Target Area Target Region Target Name Type Reference
TEA TARGET.TEA.GENITALIA Genitalia bulbospongiosus-muscle (unknown reference)
TARGET.TEA.RECTUM Rectum corrugator-cutis-ani-muscle (unknown reference)
TARGET.TEA.URETER Ureter external-urethral-sphincter-female (unknown reference)

Thirdparty Circuits


CN=Caudate Nucleus,FEC.FT.CN (see Basal Ganglia)
DVM=Vagus Nucleus,LAC.HL.VGN
IMG=Inferior Mesenteric Ganglion,LAC.PN.SYM.IMG
IML=Intermediolateral Nucleus,LAC.SC.IZ.IML
LC=Locus Coeruleus,LMC.HT.LC
MPFC=Orbitofrontal Cortex,NC.AL.OPFC (see Orbitomedial Prefrontal Cortex)
MPOA=Median Preoptic Nucleus,LAC.FD.HT.MPO
NBM=Basal Nucleus of Meynert,LMC.FT.NBM
ONF=Onuf's Nucleus,LPC.SC.VH.ONF
PBN=Parabrachial Nucleus,LPC.HT.PRF.PB
PEL=Pelvic Peripheral Ganglion,LAC.PN.PSYM.PPG
PU=Dorsal Putamen Lateral,FEC.FT.PU.LT
PVN=Paraventricular Nucleus,LAC.FD.HT.PV
SNC=Substantia Nigra Pars Compacta Lateral,FEC.FT.SNC.LT
SPS=Sacral Parasympathetic Nucleus,LAC.SC.IZ.SPS
VTA=Ventral Tegmental Area,LMC.MM.VTA
ZI=Subthalamic Nucleus Caudal,BGA.FD.STN.ZI

BAR=Barrington's Nucleus,LAC.HT.BR
IMG=Inferior Mesenteric Ganglion,LAC.PN.SYM.IMG
IML=Intermediolateral Nucleus,LAC.SC.IZ.IML
ONF=Onuf's Nucleus,LPC.SC.VH.ONF
PAG=Periaqueductal Gray Matter,LMC.MM.PAG
PEL=Pelvic Peripheral Ganglion,LAC.PN.PSYM.PPG
SPS=Sacral Parasympathetic Nucleus,LAC.SC.IZ.SPS