A system of gynecology . al twigs to theperineal and urethral muscles. THE PERINEAL liODY. 233 From this brief account of the structures in immediate*relation with the perineal body it will be seen that, aside from the support which itgives td the anterior rectal wall, its principal office seems to he t forma point dappui for the muscles and fasciae which have been mentionedas constituting the superficial portion of the pelvic floor, and that theonly way in which it can he said to furnish support to the internalgenital organs is through its connection with the floor. That itsrelation with the
A system of gynecology . al twigs to theperineal and urethral muscles. THE PERINEAL liODY. 233 From this brief account of the structures in immediate*relation with the perineal body it will be seen that, aside from the support which itgives td the anterior rectal wall, its principal office seems to he t forma point dappui for the muscles and fasciae which have been mentionedas constituting the superficial portion of the pelvic floor, and that theonly way in which it can he said to furnish support to the internalgenital organs is through its connection with the floor. That itsrelation with the deeper structures is not particularly intimate will heinferred from the fact that it receives only a few of the more internalfibres of the pubo-COOCygei. Its base, on the other hand, is closelyconnected with the superficial portion of the floor, especially with thestrong ischio-perineal ligament, which in parturition hears the brunt ofthe expulsive force during the emergence of the childs head (Fig. 79). Fig. Relations of the Muscular Floor of the Pelvis to the Presentation at tin. Last Stage of Parturi-tion: l. upper margin t vaginal ring; J. ischio-perineal ligament and superficial trans-verse muscle; 3, their attachments to the tuberosities of the Ischium; 4, lower part of thepubo-and obturato-coccygeus muscles; p,perineal body; a,anus. Want of space forbids our entering upon a discussion of the interest-ing subject of the structural anatomy and physics of the pelvic floor,which have been so admirably treated by the Edinburgh authors, fromwhom we have borrowed freely. It may he stated, briefly, that, accord-ing to Dr. Marts theory,1 the floor may he divided into two segments,a pubic, including the bladder, urethra, anterior vaginal wall, and peri-toneum covering the bladder, and a sacral, made up of the rectum,perineal body, and posterior vaginal wall. Ranney, following a sug-gestion of Fosters,2 offers a different division, which is rather include- in the pub
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectwomen, bookyear1887
