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Sectioned Pelvis: Bladder – Male Reproductive Organs

by James Pickering, PhD
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    00:00 Now let's turn to the bladder and on the screen we can see two hemisections of the pelvis which is being cut down in the sagittal plane.

    00:09 And here we can see we have the male pelvis and we can see we have the female pelvis.

    00:15 And what we can see is anteriorly over here and posteriorly here for the male. Anterior here and posterior here for the female.

    00:25 We can see that directly behind the pubic symphysis in both the male and the female we have the bladder which we can make out here.

    00:35 So both in the male and the female we have the bladder directly posterior to the pubic symphysis.

    00:42 Now the bladder is a hollow organ. Its a hollow organ that has strong muscular walls and these walls are distensible.

    00:51 That means that the bladder can alter in shape much in size; much like the stomach did.

    00:58 The position is found within the lesser pelvis.

    01:02 So it's found beneath the pelvic brim and it is posterior to the pubic symphysis.

    01:06 It is inferior to the peritoneum.

    01:09 So we have a layer of the peritoneum coming down from the anterior abdominal wall in both the male and the female.

    01:16 And then the peritoneum lies over the top of the bladder we can see it here.

    01:21 See the peritoneum lying over the top of the bladder.

    01:25 Now, the overlying peritoneum can form pouches as it covers the pelvic viscera that project up into the pelvic cavity. That project into the pelvic cavity.

    01:39 So in the male we can have a pouch where we have got the bladder and then we here we have got the rectum.

    01:44 So here in the male we can see directly posterior to the bladder we find the rectum.

    01:53 And we can follow the peritoneum as it comes from the anterior abdominal wall over the bladder and then up the rectum up here and then follows the various contours of the gastrointestinal tract.

    02:04 We can see that the bladder is inferior to the peritoneum.

    02:09 But this space that's located in between the bladder and the rectum which is lined by peritoneum this in the male known as the rectovesical pouch.

    02:22 The rectovesical pouch and its in between the rectum and the bladder.

    02:27 In the female a similar arrangement occurs but you have the vagina and the uterus positioned between the bladder and the rectum. But we can still follow this peritoneum.

    02:40 So the peritoneum goes over the bladder and then it can actually go over the uterus which we see here, positioned on top of the bladder.

    02:50 So the peritoneum comes over the superior surface of the bladder.

    02:55 It may creep in between the bladder and the uterus.

    02:59 And then it runs over the uterus here so then form this pouch in between the uterus and the rectum.

    03:08 Here we can see the rectum in the female.

    03:11 So because the uterus is in between the bladder and the rectum.

    03:16 In the female we have two pouches. We have the pouch that's in between the bladder and the uterus. The so called the vesicouterine pouch and that's what we can see here.

    03:30 And then between the uterus and the rectum we find we have the rectouterine pouch.

    03:35 And this rectouterine pouch is really important in the female.

    03:41 In the female this pouch can collect a free fluid or pus.

    03:46 Free fluid or pus that's accumulative within the peritoneal cavity can migrate to this deep pouch via the various paracolic gutter. And this pus needs to be drained and the easiest way to access this pouch is to pass through the vagina.

    04:05 So transvaginal approach will allow access to this pouch and the passing free fluid can be drained away.

    04:13 That prevents any interference to the rectum introducing feces into the peritoneal cavity.

    04:20 And passing through this way will prevent the abdominal cavity being opened up to the outside environment. So tranvaginally can then enter through this small fibro muscular wall and enter into the rectouterine pouch to withdraw free fluid or pus.


    About the Lecture

    The lecture Sectioned Pelvis: Bladder – Male Reproductive Organs by James Pickering, PhD is from the course Pelvis.


    Included Quiz Questions

    1. Recto-uterine pouch
    2. Retrorectal pouch
    3. Infraperitoneal space
    4. Pubovesical pouch
    5. Hepatorenal pouch
    1. Pubic symphysis
    2. Ischial tuberosity
    3. Ilium
    4. Uterus
    5. Ischium

    Author of lecture Sectioned Pelvis: Bladder – Male Reproductive Organs

     James Pickering, PhD

    James Pickering, PhD


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    Very well explained lecture
    By Lisa T. on 27. July 2018 for Sectioned Pelvis: Bladder – Male Reproductive Organs

    Dr. James' explanation was very clear. The pictures in the lecture could have been a bit bigger but overall it was delivered very well.