pyramidal cell

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pyramidal cell

Etymology: Gk, pyramis + L, cella, storeroom
a neuron with a pyramid-shaped cell body in the gray matter of the cerebral cortex.

pyramidal cell

A large, common neuron found in the cerebral cortex. Pyramidal cells are flask-shaped or triangular, and, in the parts of the cortex with six layers, they occupy the fifth layer. Pyramidal cell dendrites project up into the most superficial layer of the cortex, while pyramidal cell axons run in the opposite direction, i.e., downward and out of the cortex.
Synonym: pyramidal neuron
See also: cell
References in periodicals archive ?
These data suggest that TEN modulated action potential-dependent neurotransmitter release at the Schaffer collateral-CA1 pyramidal neuron synapses, which is consistent with the PPF experiment, and the increase of presynaptic neurotransmitter release induced by TEN is strongly recommended.
In contrast to the typical neighbouring pyramidal neuron that is present in all mammals and all brain regions, the VEN has a odd spindle shape and is about three times as large.
In particular, a MAT concentration of Cd supplied damaged external pyramidal neuron, as exhibited by a typically argyrophilic dark neuronal perikarya and often by a shrunken and folded appearance compared with little or no damage in controls (Figure 2d,h).
The 5HT3a cells and the distal dendrites of pyramidal neurons receive top-down contextual information from other cortical areas that is essential for constructing meaningful perceptions of sensory stimuli.
Age-related alterations of GABAergic input to CA1 pyramidal neurons and its control by nicotinic acetylcholine receptors in rat hippocampus.
A specific synapse in the hippocampus, the mossy fiber synapse on CA3 pyramidal neurons, which is accessible to direct recording using the patch-clamp method and shows a high degree of plasticity, was the focus in this research.
Dendritic arbors of pyramidal neurons in the CA1 hippocampus of weanling rats were Golgi stained and quantified by Sholl analysis (Lein et al.
A misalignment of large pyramidal neurons within layers III and IV was observed.
Neurofibrillary tangles, which are composed of abnormally phosphorylated tau protein aggregates, appear as parallel, thickened fibrils that extend toward the apical dendrite of pyramidal neurons.
Data on the weight of the right cerebral hemisphere, the volume (V) of the right hippocampal CA1 region, and the Nv and total number (N) of pyramidal neurons in the right CA1 region of Sprague-Dawley rats at postnatal day (PN) 14.
Field CA2 is characterized by a narrow, dense band of large pyramidal cells and field CA3 by a broad, loose band of large pyramidal neurons.