00:00 If we carry on looking at the vagina, then deep within the vagina as it is approaching the cervix, we find a region known as the fornix and that's this region here which essentially as a gutter-like structure. A gutter-like ring that surrounds the cervix which is protruding into the vault of the vagina. 00:21 Protruding into the actual cavity of the vagina. And here we can see in this diagram we have what's known as the external os and that is a small opening which we can see here as well. 00:34 The opening that is continuous with the cavity of the uterus and the vagina. 00:39 And we can see the cervix this region here, is actually pushing into the vagina, this region just here. And as it pushes in, it leaves a gutter that surrounds the cervix. 00:51 And this gutter which we can appreciate is around here here we have the wall of the vagina here and here is known as the fornix. 00:59 And we can recognize four parts to a fornix. 01:04 We can have an anterior portion a posterior portion and two lateral portions. 01:09 So this is the anterior aspect of the fornix. This is the posterior aspect. 01:15 And around the sides of the cervix, we will found the more lateral, so deep within here, we find the lateral aspect of the fornix. 01:23 But this is a continuous gutter most like a moat that surrounds a castle. 01:28 We have mentioned previously that the posterior fornix is the deepest of these fornices. And it’s important because it is closely related to the rectouterine pouch. 01:40 And I have mentioned previously that the rectouterine pouch, this peritoneal pouch here is deep and free fluid and pus can collect in this region. 01:52 Access to this pouch is best served by passing through the vagina and through the posterior fornix and we can see it passing through in this direction. 02:00 So transvaginal approach through the vagina, through the posterior fornix to drain free fluid or pus from the rectouterine pouch.
The lecture Vaginal Fornix – Female Reproductive Organs by James Pickering, PhD is from the course Pelvis.
Which structure can drain fluid accumulation in the rectouterine pouch?
Which statement concerning the rectouterine pouch is inaccurate?
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