. Surgery, its principles and practice . and the pos-terior surface ofthe bulb freed, it is well to insert a retractor, by which the bulb is drawn upward and abetter view obtained of the recto-urethralis muscle, which lies betweenthe two branches of the levator ani and covers the membranous urethra,toward which it draws the anterior wall of the rectum. In dividingthe recto-urethralis muscle care should be taken not to injure therectum, which is often drawn forward so that it lies almost in frontof the membranous urethra. It nearly always covers the apex of theprostate. As soon as the recto-ure
. Surgery, its principles and practice . and the pos-terior surface ofthe bulb freed, it is well to insert a retractor, by which the bulb is drawn upward and abetter view obtained of the recto-urethralis muscle, which lies betweenthe two branches of the levator ani and covers the membranous urethra,toward which it draws the anterior wall of the rectum. In dividingthe recto-urethralis muscle care should be taken not to injure therectum, which is often drawn forward so that it lies almost in frontof the membranous urethra. It nearly always covers the apex of theprostate. As soon as the recto-urethralis has been thoroughly dividedit is easy by blunt dissection to push the rectum backward and thusobtain a good view of the membranous urethra, the bulb being draA\aiforward along with the muscular structures of the triangular membranous urethra is then opened upon the sound (Fig. 231) andthe edges picked up with ordinary clamps, being sure to secure themucous membrane. A sound is then inserted into the bladder through. Fig. 229.—The Inverted V Cutaneous Incision. HYPERTROPHY OF THE PROSTATE. 441 the urethral wound (an assistant having withdrawn the sound from /
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