AN EXPERIMENTAL STUDY OF MICTURITION RELEASED FROM CEREBRAL CONTROL

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Abstract
The effect of removal of the cerebral motor cortices upon the function of micturition in cats was studied. The vesical capacity was reduced after extirpation of one motor cortex, and a further decrease in capacity followed removal of the 2d cortex. Decerebration at a later date produced no further changes in vesical volume. The intravesical pressure at the time fluid escaped from the urethra was reduced with extirpation of the motor cortices. The bladder lost to some extent its capacity to accommodate increasing quantities of fluid at low pressures. "Shock" in the smooth muscle of the bladder could often be demonstrated immediately after the operation.