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Biomedical subjects

V G Lukashin

Publications and source records attributed to V G Lukashin.

3 recordsLinked to original sources

[Structural and functional reactive changes in the bushy interceptor of the frog urinary bladder upon adequate stimulation].

Morphological and functional changes in the bushy receptors of the frog urinary bladder were studied after a definite cystectasia (bladder wall distention). Morphological and electrophysiological parameters were registered synchronously. Under the effect of distention the total rate of afferent impulse activity was demonstrated to increase with a simultaneous increase of the average size of the receptor end-plates and with changing (growing round) in their form. Increment of the average size of the end-plates overtakes that of the distance between two points chosen on the urinary bladder wall; certain shifts are also observed in time parameters for staining the receptors with methylene blue. A possibility is suggested on interconnections of morphological and electrophysiological shifts.

Animals

[Comparative morphologic features of receptors of central and local origin in the steppe turtle].

Quantitative comparison of morphological features in the receptors of central and local origin has been performed with methylene blue in the small intestine of the tortoise (Testudo horsfieldi). Comparison is made between bushy receptors of central and local origin (formed by the dendrites of cells II, Dogel's type). Despite their common plan of composition, there exist certain differences between these two types of receptors: in the receptors of local origin, unlike the receptors of central origin, terminal plaques, the diameter of the abducent fibre and the size of division areas are large; polymorphism of the terminal plaques is more pronounced. Such indices as length of terminal branches and dimensions of angles between diverging branches are larger in the receptors of central origin.

Animals

[Structural-reactive properties of interoceptors (intravital study)].

It has been shown that between living and surviving receptors of a central and local origin there is similarity in a number of morphological, reactive and tinctorial properties as well as in their response to tissue fixation. At the same time these structures possess a number of specific properties making them different from one another.

Animals