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Nernst equation:
Quantitative expression that relates the equilibrium ratio of
concentrations of an ion on either side of a permeable membrane
to the voltage difference across the membrane.
nerve cell:
see neuron
neural crest:
Group of embryonic cells derived from the roof of the neural
tube that migrate to different locations and give rise to various
types of adult cells, including nerve cells in peripheral ganglia,
chromaffin cells, melanocytes, and Schwann cells.
neurite:
Long process growing from a nerve cell in culture. A generic
term that does not specify whether the process is an axon or
a dendrite.
neurofilament:
Type of intermediate filament found in nerve cells.
neuron
(nerve cell):
Cell with long processes specialized to receive, conduct, and
transmit signals in the nervous system.
neuropeptide:
Peptide secreted by neurons as a signaling molecule either at
synapsis or elsewhere.
neurotransmitter:
Small signaling molecule secreted by the presynaptic nerve cell
at a chemical synapse to relay the signal to the postsynaptic
cell. Examples include acetylcholine, glutamate, GABA, glycine,
and many neuropeptides.
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