[Effect of sodium ion concentration on the structural and functional characteristics of bladder receptors].
The experiments were performed on the frog urinary bladder bushy receptors by means of a combined morpho-electrophysiological technique. Effects of decreased and increased (by 1.5 and 2 times) concentration of sodium chlorate in the alternating solution on morphological and electrophysiological characteristics of the vital receptors were investigated. Specific peculiarities of the complex morpho-physiological reaction were demonstrated at each effect studied. Analysing morphological phenomena, dynamic of spike activity and the literature data, a suggestion was made that for the receptors studied osmotic pressure fluctuations within hypotonic range serve as an adequate stimulator (besides the wall dilatation). Hypertonic medium produces a noticeable injuring effect of the receptor.
D000818:Animals; D004357:Drug Synergism; D007038:Hypotonic Solutions; D008465:Mechanoreceptors / Q000166:cytology* / Q000187:drug effects / Q000502:physiology; D008751:Methylene Blue / Q000494:pharmacology; D011896:Rana temporaria; D012462:Saline Solution, Hypertonic; D012965:Sodium Chloride / Q000494:pharmacology*; D013194:Staining and Labeling / Q000379:methods; D001743:Urinary Bladder / Q000294:innervation*
D007038:Hypotonic Solutions; D012462:Saline Solution, Hypertonic; D012965:Sodium Chloride; D008751:Methylene Blue
Vliianie kontsentratsii ionov natriia na strukturno-funktsional'nye kharakteristiki kustikovidnykh retseptorov.