1298 PHYSIOLOGY 



unstriated muscles of the bladder, and that the contraction of the 

 muscular wall may be directly augmented by impulses proceeding 

 from the cortex to the upper part of the lumbar cord. This view 

 is favoured by the fact that stimulation of the crus cerebri has 

 been observed to cause contraction of the detrusor urinae. In this 

 experiment the abdomen was opened, so there could be no question 

 of the contraction of the abdominal muscles. 



