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Olfactory bulb (main) periglomerular cell

Name: Olfactory bulb (main) periglomerular cell
Description: Small intrinsic neuron in the glomerular layer of the olfactory bulb, with cell bodies surrounding the olfactory glomerulus. The cell body is 6-8 um in diameter, from which arises a short bushy dendrite that arborizes within a glomerulus, where it receives synaptic input from olfactory receptor cell axon terminals, and engages in dendrodendritic interactions with mitral/tufted cell dendrites. Occasionally, bitufted PG cells connected to two glomeruli are seen. The axon distributes laterally within the extraglomerular region, extending as far as 5-10 glomeruli away. Some PG cells appear to lack axons. Subtypes may be identified based on their biochemical constituents.
Synonym(s): Periglomerular neuron, Olfactory bulb periglomerular cell
Has role: Intrinsic neuron role
Abbreviation: PG cell: PGC
Super-category: Neuron
URL: Shepherd, Chen, Greer. 2004. Olfactory bulb. In The synaptic organization of the brain, ed 5 New York: Oxford University Press
Id: nlx_cell_091202
Defining criteria: Morphology; Connectivity; Biochemical
Organism: Mammal
Link to OWL / RDF: Download this content as OWL/RDF

Soma Specific Properties

Cell Soma Shape: Spherical
Cell Soma Size: Small soma
Soma Location: Olfactory bulb main glomerular layer

Dendrite Specific Properties

Spine density on dendrites: spiny high density
Branching type: unipolar

Axon Specific Properties

Axon myelination: unmyelinated
Axon projection laterality: ipsilateral
Origin of axon: soma
Location of local axon arborization: Within extraglomerular regions

Intrinsic Properties

Neurotransmitter released: GABA, Dopamine
Molecular constituents: Calbindin 28K
Defining Criteria: Morphology; Connectivity; Biochemical

Categories related to Olfactory bulb (main) periglomerular cell

Subventricular Zone


  • reference for calbindin: Kosaka & Kosaka, 2007

Notes

This page uses this default form:Petilla_neuron



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Facts about Olfactory bulb (main) periglomerular cellRDF feed
AbbrevPG cell: PGC  +
AxonDiameterRat: 1 um  +
AxonLengthRat: up to 500 um  +
AxonMyelinationunmyelinated  +
AxonProjectionLateralityipsilateral  +
BranchingMetricsunipolar  +
CellSomaShapeCategory:Spherical   +
CellSomaSizeSmall soma  +
CellularSynapticTargetOther PG cells; initial trunks of mitral/tufted cell apical dendrites  +
CommentSuggest that the name of this, here and in Suggest that the name of this, here and in the neurolex wiki list, should be changed to "olfactory bulb (main) periglomerular cell", to be consistent with the other olfactory bulb cells. Neurotransmitter: may be in separate cell populations, GABA, Or colocalized, Dopamine, Depending on the species alized, Dopamine, Depending on the species
CurationStatuspending final vetting  +
DefiningCitationShepherd, Chen, Greer. 2004. Olfactory bulb. In The synaptic organization of the brain, ed 5 New York: Oxford University Press  +
DefiningCriteriaMorphology; Connectivity; Biochemical  +
DefinitionSmall intrinsic neuron in the glomerular l Small intrinsic neuron in the glomerular layer of the olfactory bulb, with cell bodies surrounding the olfactory glomerulus. The cell body is 6-8 um in diameter, from which arises a short bushy dendrite that arborizes within a glomerulus, where it receives synaptic input from olfactory receptor cell axon terminals, and engages in dendrodendritic interactions with mitral/tufted cell dendrites. Occasionally, bitufted PG cells connected to two glomeruli are seen. The axon distributes laterally within the extraglomerular region, extending as far as 5-10 glomeruli away. Some PG cells appear to lack axons. Subtypes may be identified based on their biochemical constituents. d based on their biochemical constituents.
DendriteLengthRat: 50-70 um  +
DendriteThicknessRat: 0.5-2 um at origin  +
EditorialNotehttp://senselab.med.yale.edu/neurondb/NeuronProp.aspx?id=3978
ExampleImageOlfactory bulb (main) periglomerular cell.gif  +
FiringPatternsbursting  +
Has default formThis property is a special property in this wiki.Petilla neuron  +
Has roleIntrinsic neuron role  +
Idnlx_cell_091202  +
LabelOlfactory bulb (main) periglomerular cell  +
Located inOlfactory bulb main glomerular layer  +
LocationOfLocalAxonArborizationWithin extraglomerular regions  +
ModifiedDate9 March 2012  +
MolecularConstituentsCalbindin 28K  +
NeurotransmitterGABA  +, and Dopamine  +
NumberOfPrimaryDendrites1  +
OriginOfAxonsoma  +
Page has default formThis property is a special property in this wiki.Petilla neuron  +
SpeciesMammal  +
SpineDensityOnDendritesSpiny high density  +
SpontaneousFiringPatternsBursting  +
SpontaneousFiringRateRapid firing  +
SubcellularSynapticTargetCell bodies of other PG cells; initial trunks of primary apical dendrites of mitral/tufted cells  +
SuperCategoryNeuron  +
SynapticPhysiologyPostulated to mediate lateral inhibition at the glomerular level; also mediate gain control  +
SynonymPeriglomerular neuron  +, and Olfactory bulb periglomerular cell  +