dendritic spine
A small, membranous protrusion from a dendrite that forms a postsynaptic compartment, typically receiving input from a single presynapse. They function as partially isolated biochemical and an electrical compartments. Spine morphology is variable:they can be thin, stubby, mushroom, or branched, with a continuum of intermediate morphologies. They typically terminate in a bulb shape, linked to the dendritic shaft by a restriction. Spine remodeling is though to be involved in synaptic plasticity.
GO:0044309
neuron spine
is_a
GO:0098794
postsynapse
is_a
GO:0030425
dendrite
part_of
branched dendritic spine
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dendrite spine
exact
mushroom dendritic spine
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sessile dendritic spine
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stubby dendritic spine
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thin dendritic spine
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