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

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.