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Category:Olfactory bulb (main) periglomerular cell
Abbrev PG cell: PGC  +
AxonDiameter Rat: 1 um +
AxonLength Rat: up to 500 um  +
AxonMyelination unmyelinated  +
AxonProjectionLaterality ipsilateral  +
BranchingMetrics unipolar  +
CellSomaShape Category:Spherical   +
CellSomaSize Small soma  +
CellularSynapticTarget Other PG cells; initial trunks of mitral/tufted cell apical dendrites +
Comment Suggest 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
CurationStatus pending final vetting  +
DefiningCitation Shepherd, Chen, Greer. 2004. Olfactory bulb. In The synaptic organization of the brain, ed 5 New York: Oxford University Press  +
DefiningCriteria Morphology; Connectivity; Biochemical  +
Definition Small 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.
DendriteLength Rat: 50-70 um +
DendriteThickness Rat: 0.5-2 um at origin  +
ExampleImage Olfactory bulb (main) periglomerular cell.gif +
FiringPatterns bursting  +
Has default formThis property is a special property in this wiki. Petilla neuron  +
Has role Intrinsic neuron role +
Id nlx_cell_091202  +
Label Olfactory bulb (main) periglomerular cell  +
Located in Olfactory bulb main glomerular layer +
LocationOfLocalAxonArborization Within extraglomerular regions +
Modification dateThis property is a special property in this wiki. 9 March 2012 01:21:14  +
ModifiedDate 9 March 2012  +
MolecularConstituents Calbindin 28K +
Neurotransmitter GABA +, Dopamine +
NumberOfPrimaryDendrites 1  +
OriginOfAxon soma  +
Page has default formThis property is a special property in this wiki. Petilla neuron  +
Species Mammal +
SpineDensityOnDendrites Spiny high density +
SpontaneousFiringPatterns Bursting  +
SpontaneousFiringRate Rapid firing  +
SubcellularSynapticTarget Cell bodies of other PG cells; initial trunks of primary apical dendrites of mitral/tufted cells  +
SuperCategory Neuron  +
SynapticPhysiology Postulated to mediate lateral inhibition at the glomerular level; also mediate gain control  +
Synonym Periglomerular neuron  +, Olfactory bulb periglomerular cell  +
Categories Neuron
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104312 + About
Olfactory epithelium main sensory cell + CellularSynapticTarget
Subventricular Zone + RelatedTo


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*Note: Neurolex imports many terms and their ids from existing community ontologies, e.g., the Gene Ontology. Neurolex, however, is a dynamic site and any content beyond the identifier should not be presumed to reflect the content or views of the source ontology. Users should consult with the authoritative source for each ontology for current information.