EditFrom NeuroLex
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
- reference for calbindin: Kosaka & Kosaka, 2007
Notes
This page uses this default form:Petilla_neuron
Contributors
Admin, Bandrow, Ccdbuser, Gshephe$, Jcachat, Memartone, Mimam, Nifbot2, Slarson, Totsui, Wawong
Facts about Olfactory bulb (main) periglomerular cellRDF feed
| 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 + |
| EditorialNote | http://senselab.med.yale.edu/neurondb/NeuronProp.aspx?id=3978 |
| ExampleImage | _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 + |
| ModifiedDate | 9 March 2012 + |
| MolecularConstituents | Calbindin 28K + |
| Neurotransmitter | GABA +, and 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 +, and Olfactory bulb periglomerular cell + |
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