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Spontaneous contractions in urinary bladder smooth muscle: Preliminary results
Author(s) -
van Duyl W. A.
Publication year - 1985
Publication title -
neurourology and urodynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.918
H-Index - 90
eISSN - 1520-6777
pISSN - 0733-2467
DOI - 10.1002/nau.1930040406
Subject(s) - medicine , contraction (grammar) , urinary bladder , detrusor muscle , urinary system , rhythm , urology
Spontaneous rhythmic contraction patterns in bladder tissue have been analysed in time and space by using a new experimental technique. These rhythmic contractions appear to be composed of frequency components which are multiples of a basic frequency. Distributions of the activity are also more or less synchronized in space. The physiological significance of the spontaneous activity is related to the potentiality of small regional contractions to become an epicentre for the development of large contractions leading to detrusor instability. The level of spontaneous activity is suggested as a parameter to define the state of the bladder along a bladder‐performance scale with the fully passive and fully activated states as extreme modes of performance.