BrainRegionNSA NC PH PIR

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Piriform Cortex

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This page covers biological details of component Piriform Cortex. Region is part of aHuman target integrated biological model.

  • Top-down path to region: Cerebral Cortex -> Parahippocampal Lobe (NC.LOBE.PH) -> Anterior Parahippocampal Gyrus (FMM.NC.PHA) -> Rhinal Cortex (NC.PHA.RH) -> Piriform Cortex (NSA.NC.PH.PIR) (see Mind Maps)
  • Type: cortex
  • Quality: L0
  • Brain area: Neocortical Brain - Sensory Aggregation Area (NSA)
  • Area circuit: Neocortical Smell and Taste Aggregation (SMT)
  • Brodmann ID: 34
  • Role: cortex.generic
  • Function: Perception of smells, primary olfactory cortex
  • Notes to function:
    • Olfaction
    • dorsal entorhinal area




  • no child items defined



Inbound Region Connections:

Source Area Source Region Source Name Type Role Reference
LPC LPC.FT.MOB Main Olfactory Bulb excitatory-glu driver Summary of main projection pathways in the olfactory system (MOB -> PC)

Outbound Region Connections:

Target Area Target Region Target Name Type Role Reference
FAM FAM.FT.EPF Endopiriform Nucleus excitatory-glu uncertain Gustatory sensory system of rat and macaque (PiR -> EnP)
FAM.FT.IPAC.MED Medial Interstitial Anterior Commissural Nucleus excitatory-glu uncertain (unknown reference)
FMM FMM.NC.PH.LEC Lateral Entorhinal Cortex feedforward-glu uncertain KIV model of cortico-hippocampal formation with subcortical projections for motor actions (PC -> EC, abstract)
NCP NCP.FD.TH.MDC Central Mediodorsal Nucleus of Thalamus excitatory-glu uncertain Thalamocortical relationships (s2MD -> MD, abstract)
NCP.NC.INS.AIC Anterior Insular Cortex feedforward-glu uncertain Gustatory sensory system of rat and macaque (PiR -> Iav, abstract)
NCP.NC.INS.PPC Peripaleocortical Claustral feedforward-glu uncertain Gustatory sensory system of rat and macaque (PiR -> Iav, abstract)

Thirdparty Circuits


AON=Anterior Olfactory Nucleus,LPC.FT.AON
CA1=Ventrolateral Cornu Ammonis of Hippocampus,FMM.FT.HC.CA1 (see Hippocampal Formation)
CA2=Dorsolateral Cornu Ammonis of Hippocampus,FMM.FT.HC.CA2
CA3=Dorsomedial Cornu Ammonis of Hippocampus,FMM.FT.HC.CA3 (see Hippocampal Formation)
DG=Dentate Gyrus,FMM.FT.HC.DG
EC=Entorhinal Cortex,FMM.NC.PH.ET (see Rhinal Cortex)
PC=Piriform Cortex,NSA.NC.PH.PIR

EnP=Endopiriform Nucleus,FAM.FT.EPF
Gud=Insular Cortex,NC.INS
Gug=Insular Cortex,NC.INS
HF=Hippocampal Formation,FMM.FT.HF
IadIap=Insular Cortex,NC.INS
Iav=Insular Cortex,NC.INS
NST=Solitary Nucleus,LPC.HL.SOL
PB=Parabrachial Nucleus,LPC.HT.PRF.PB
PiR=Piriform Cortex,NSA.NC.PH.PIR
PrC=Perirhinal Cortex,FMM.NC.PH.PER
VPMpc=Ventral Posteromedial Nucleus,NCP.FD.TH.VPM

A=Anterior Nucleus of Thalamus,FD.TH.AN (see Cognitive Thalamus)
CM=Centromedian Nucleus of Thalamus,FEC.FD.TH.CM
LD=Lateral Dorsal Nucleus of Thalamus,FMM.FD.TH.LD
LGN=Lateral Geniculate Nucleus,NSA.FD.LGN
LP=Lateral Posterior Nucleus of Thalamus,NPE.FD.TH.LP
MD=Mediodorsal Nucleus of Thalamus,FD.TH.MD (see Cognitive Thalamus)
MGN=Medial Geniculate Body,NSA.FD.TH.MGB
P=Ventral Posterior Nuclei,NSA.FD.TH.VP (see Sensory Thalamus)
VA=Ventral Anterior Nucleus,NMA.FD.TH.VA
VL=Ventral Lateral Nucleus,NMA.FD.TH.VL
VPL=Ventral Posterolateral Nucleus,NCP.FD.TH.VPL
VPM=Ventral Posteromedial Nucleus,NCP.FD.TH.VPM
pA=Posterior Cingulate Cortex,NCP.NC.MPL.PSCG
pCM=Dorsal Putamen,FEC.FT.DPU (see Basal Ganglia)
pLD=Anterior Cingulate Cortex,NC.AL.ACG (see Anterior Cingulate Area)
pLGN=Primary Visual Cortex,NSA.NC.OCC.V1
pLP=Superior Parietal Lobule,NC.SPL
pMD=Prefrontal Cortex,NC.AL.PFC
pMGN=Primary Auditory Cortex,NSA.NC.TTG.A1
pP=Insular Cortex,NC.INS
pVA=Supplementary Motor Cortex,NMA.NC.SMC
pVL=Motor Cortex,NMA.NC.MC
pVPL=Primary Somatosensory Cortex,NCP.NC.PG.S1
pVPM=Precentral Cortex,NCP.NC.PO.PCC
s1A=Subiculum,FMM.FT.HF.SUB (see Hippocampal Formation)
s1MD=Septal Nuclei,FAM.FT.SEP
s1P=Central Cervical Nucleus,LPC.SC.IZ.CCV
s1VL=Dentate Nucleus,LLC.HT.CR.DN
s2A=Mammillary Body,FD.MB (see Hypothalamus)
s2MD=Piriform Cortex,NSA.NC.PH.PIR
s2P=Principal Trigeminal Nucleus,LPC.HT.PN.PTR
s2VL=Basal Ganglia,FEC.FT.BG
s3MD=Prefrontal Cortex,NC.AL.PFC
sCM=Globus Pallidus Internal,FEC.FT.GPI (see Basal Ganglia)
sLD=Superior Parietal Lobule,NC.SPL
sLP=Superior Colliculus,MM.SC (see Reflexes Nuclei of Midbrain Mesencephalon)
sVA=Basal Ganglia,FEC.FT.BG
sVPL=Marginal Nucleus,LPC.SC.PH.MG (see Posterior/Dorsal Horn)
sVPM=Solitary Nucleus,LPC.HL.SOL

AMYG=Cortical Amygdaloid Nucleus,FAM.FT.AM.CO (see Amygdala)
AOB=Accessory Olfactory Bulb,LPC.FT.AOB
AON=Anterior Olfactory Nucleus,LPC.FT.AON
HC=Hippocampus,FMM.FT.HC (see Hippocampal Formation)
MD=Mediodorsal Nucleus of Thalamus,FD.TH.MD (see Cognitive Thalamus)
MHT=Dorsomedial Hypothalamic Nucleus,LAC.FD.HT.DM
MOB=Main Olfactory Bulb,LPC.FT.MOB
MOE=Main Olfactory Epithelium,LPC.PN.SG.MOE
OT=Olfactory Tubercle,LPC.FT.OT
PC=Piriform Cortex,NSA.NC.PH.PIR
PHT=Posterior Hypothalamic Area,LAC.FD.HT.POS (see Hypothalamus)
TEC=Prepyriform Cortex,NSA.NC.PH.PRP
VNO=Vomeronasal Organ,LPC.PN.SG.VNO