pyramidal cell

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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
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References in periodicals archive ?
PCP is an open-channel blocker and there are more open (active) NMDA-Rs on fast-spiking GABAergic cells than on slow-spiking cells such as excitatory pyramidal neurons. Thus, administration of PCP preferentially suppresses the activation of these inhibitory neurons, resulting in a dramatic disinhibition of pyramidal neuron activity and elevated uncoordinated firing throughout the cortico-limbo-thalamic circuit.
The Pyramidal Neuron of the Cerebral Cortex, 1904, Santiago Ramon y Cajal (1852-1934), ink and pencil on paper, 21.9 x 17.5cm.
The neuron parameters represent a pyramidal neuron in neocortex [27].
The corticospinal tract of the rats originates from the pyramidal neuron of layer V of the sensorimotor cortex of the brain, and the axons descend along the internal capsule, cerebral peduncle, and the pyramid of the ventral medulla oblongata.
Similarly, the immunoreactivity in the estrogen and EBN groups was moderate to strong in the dentate gyrus and pyramidal neuron in the CA2 area.
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.
This result of simvastatin may be related to the neuroprotective effect in hippocampal pyramidal neuron.
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.
Relationship between excitatory postsynaptic sites and dendritic spines is not fixed but regulated along development of pyramidal neurons. In the mature brain, pyramidal neuron dendrites are covered by spines.
A model of a CA3 hippocampal pyramidal neuron incorporating voltage-clamp data on intrinsic conductances.
Oakley et al .[sup][10] reported, in 5xFAD brain, accumulated intraneuronal A[sz][sub]42 starting at 1.5 months of age, the presence of cerebral amyloid plaques and gliosis at 2 months of age, decreased synaptic markers including synaptophysin and postsynaptic density 95 (PSD95) accompanied by cognition deficit at 4 months of age, and pyramidal neuron loss in cortical layer 5 at 9 months of age.
Vascular endothelial growth factor, induced by cerebral damage, was prominent in the area of infarction and appeared to be expressed both in pyramidal neuron, astroglia and in endothelial cells.