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  • Title: [The geometrical characteristics of the presynaptic mitochondria and active zones of the dorsal horn of the spinal cord in the cat].
    Author: Rusakov DA, Skibo GG.
    Journal: Neirofiziologiia; 1989; 21(6):741-7. PubMed ID: 2630912.
    Abstract:
    An electron microscopic study of the ultrastructure of 140 presynaptic terminals (PTs) in the dorsal horn of the spinal cord of cat was carried out. Some spatial characteristics of mitochondria and active zones (AZs) at these PTs were examined by the statistical stereological analysis. The distribution of spatial mitochondrial radii and active diameters were estimated. Mean values of following parameters were obtained: volume, surface area and the number of mitochondria, AZ area, volume of synaptic clefts at observed synapses. Relations of these morphometrical data to the transmembrane diffusion and accumulation of the ions were discussed.
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