Experimental evaluation of the urethral response to section of the spinal cord or cauda equina and to the electrostimulation of the bladder in non-human primates.

Studies of urethral function in 32 female monkeys indicate a dual innervation of the mid-urethra from sympathetic and somatic supply. The resting urethral pressure profiles were preserved after low level section of the spinal cord or division of the cauda equina. They had lowered amplitude after overstretch or electrostimulation of the autonomous bladder.