[Quantitative morphologic characteristics of developing neurons of the sensory nuclei of the trigeminal nerve in the kitten].
The paper presents a quantitative Golgi study of the kitten sensory trigeminal complex. Kittens of 1-5 and 30 days were used. Trigeminal neurons were divided into five groups. Neurons of two groups ramified sparsely and were defined as "reticular" and "short dendritic" neurons. Neurons of three other groups ramified densely and were defined as "bushy" neurons, "arbory dendritic" and "multipolar giant" neurons. The quantitative morphological data were obtained by measuring cell sizes, number, length, relative length, degree of branching of dendrites and total cell branching. The neurons of different groups had different parameters and a special mode of their maturation. "Bushy" neurons showed regressive changes during ontogenesis. All their parameters were reduced during the first month. Foci of maximal dendritic branching were displaced towards the distal portions of dendrites during the processes of cell maturation. All trigeminal neurons reached the high degree of maturity at birth.
D000818:Animals; D000831:Animals, Newborn / Q000033:anatomy & histology; D002415:Cats; D002454:Cell Differentiation; D003712:Dendrites / Q000648:ultrastructure; D009474:Neurons / Q000166:cytology; D012677:Sensation / Q000502:physiology; D014278:Trigeminal Nuclei / Q000166:cytology* / Q000254:growth & development
Kolichestvennaia morfologicheskaia kharakteristika razvivaiushchikhsia sensornykh iader troĭnichnogo nerva kotiat.