- Rectouterine pouch
- An extension of the peritoneal cavity between the rectum and back wall of the uterus. The term "cul-de-sac," aside from being any "blind pouch or cavity that is closed at one end," is used specifically to refer to the rectouterine pouch. From that fact comes: Culdoscopy, the introduction of an endoscope through the vagina into the cul-de-sac; Culdoscope, the endoscope that is used to look into the cul-de-sac; and Culdocentesis, the aspiration (withdrawal) of fluid from the cul-de-sac. In French, "cul-de-sac" literally is "bottom of (a)sack." As early as the 13th century, a cul-de-sac was a dead-end street (or a dead-end way), a blind alley. (The third letter in "cul" is silent in French; in English it is spoken. So, in French "cul" is pronounced "ku" and in English "kul"). The rectouterine pouch is also known as excavatio recto-uterina (literally, the rectouterine excavation) and the pouch of Douglas, after the Scottish anatomist James Douglas (1675-1742) who explored this region of the female body and left his name attached to at least 3 other structural features in the area.
* * *rec·to·uter·ine pouch .rek-tō-'yu̇t-ə-.rīn-, -rən- n a sac between the rectum and the uterus that is formed by a folding of the peritoneum compare RECTOVESICAL POUCH
* * *rectovaginal pouch excavatio rectouterina.
Medical dictionary. 2011.