Rectovaginal septum

The borders are the components of the levator ani muscle laterally and the perineal body caudally (Fig. 1.1b). No distinct borders can be described ventrally, whereas the rectovaginal fascia/septum constitutes the dorsal border. The middle compartment contains the female genital organs that are arranged in a more or less coronal plane. In more detail the ovaries, the uterine tubes, the uterus and the vagina are situated in this compartment (Fig. 1.1a). 

Dorsomedially,the middle compartment abuts the posterior compartment. The border between these compartments is demarcated by the rectovaginal fascia/septum (see also Sect 1.3.1), that is composed of dense coimective tissue, elastic fibers [44] and smooth muscle cells that belong to the longitudinal layer of the rectal wall. 

Kuhn RJ, Hollyock VE (1982) Observations on the anatomy of the rectovaginal pouch and septum. Obstet Gynecol 59 445-447... 

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