[Stereometric characteristics of the ultrastructure of presynaptic terminals in the dorsal horn of the cat spinal cord].
Ultrastructure of 240 axo-dendritic presynaptic terminals (PT) in the dorsal horn of the spinal cord of cat was investigated using the morphometrical statistic method. Parameters describing shape and average spatial radius of the three-dimensional PT (approximated by irregular ellipsoid) were estimated on the basis of the morphometry of random PT sections using ideas of the theory of probabilities. A lack of correlation between the synaptic operative zone localization and features of the terminals' shape was demonstrated. The distribution of the spatial PT radii was obtained. The obtained distribution elicited the relatively small variability of these parameters.
Rusakov
D A
DA
Skibo
G G
GG
Vasilenko
D A
DA
D000818:Animals; D002415:Cats; D013116:Spinal Cord / Q000648:ultrastructure*; D013569:Synapses / Q000648:ultrastructure*
Stereometricheskie kharakteristiki ul'trastruktury presinapticheskikh okonchaniĭ v dorsal'nom roge spinnogo mozga koshki.