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  • Title: [Development of dendritic spines in the piriform neurons of the cerebellar cortex in human prenatal ontogeny].
    Author: Volkova RI.
    Journal: Arkh Anat Gistol Embriol; 1987 Jul; 93(7):5-9. PubMed ID: 3675213.
    Abstract:
    The submicroscopic investigation on developmental peculiarities of the dendritic spines in the piriform neurons of the cerebellar cortex has been performed during the human prenatal ontogenesis. The process of morphogenesis of the spines of the tertiary dendrites in the piriform neurons is demonstrated to start rather early--on the 24th week of embryogenesis and goes through three successive stages: 1) formation of a long cytoplasmic processes deprived of any membranous specialization; 2) formation of the terminal spinal head, making synapses with parallel fibers of the cerebellar cortex; 3) definitive stage. A suggestion is made that differentiation processes of the spines depend on inductive influence of the parallel fibers of the cerebellar cortex.
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