Category:Hippocampus CA3 oriens lacunosum moleculare neuron
From NeuroLex
| Name: | Hippocampus CA3 oriens lacunosum moleculare neuron |
| Definition: | OLM cells (oriens/lacunosum-moleculare associated cell) has as its defining feature a dense axonal arbor that is confined to the stratum lacunosum-moleculare (also known as cells terminating in conjunction with entorhinal afferents). In principle the cell body and dendritic trees are located in the zones occupied by recurrent pyramidal cell collaterals. In CA3 this includes all strata except the stratum oriens. |
| Synonym(s): | OLM cell |
| Is part of : | CA3 |
| Abbreviation | OLM |
| Super-category: | neuron |
| Defining citation: | p70. Andersen et al. "The Hippocampus Book" 2007 |
| PMID: | PMID p367-p369 PMID 8915675 |
| Id: | nlx_cell_091216 |
| Link to OWLRDF: | Download this content as OWL/RDF |
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| Cell Soma Shape: | Pyramidal Soma Quality |
| Soma Location: | CA3 stratum oriens, CA3 alveus |
| Dendrite location: | CA3 alveus, CA3 stratum oriens, CA3 stratum lucidum, CA3 stratum pyramidale hippocampi, CA3 stratum radiatum |
| Defining criteria: | dense axonal arbors are restricted to stratum lacunosum-moelculare |
| Location of axon arborization: | CA3 stratum lacunosum moleculare |
| Neurotransmitter | GABA |
| Molecular constituents | Somatostatin |
| Synaptic physiology | output synapses: GABAa receptor |
With respect to axonal and dendritic spread, the O-LM cells are considered similar to DG HIPP cells, whose axon collaterals also terminate in conjunction with perforant path afferents and whose dendrites, which are located exclusively within the hilus are innervated by mossy fiber collaterals.
