[Studies on ejaculation. 2. Posterior urethrogram as a method to study ejaculation].

KIMURA, Y. Posterior Urethrogram as a Method to Study Ejaculation. Tohoku J. exp. Med., 1972, 106 (1), 89-91 Erection and ejaculation were caused in male mongrel dogs by manual stimulation of the penis and the pressure changes in the posterior urethra during this stimulation were recorded. As a result, it was noted that the pressure changes in the posterior urethra from the onset of the stimulation to the end of ejaculation were identical to those seen in the posterior urethrogram reported in the previous paper, and that rhythmic alterations in the posterior urethrogram coincided with the pressure change in the posterior urethra during actual ejaculation. posterior urethrogram ; ejaculation