hi let's talk about the urinary bladder
the urinary bladder is a storage organ for urine it receives urine from the ureters
here we can see a ureter making its transition from its abdominal part to its pelvic part here
we can see that's right at the bifurcation of the internal iliac and external iliac arteries
from the common iliac artery that that ureter is going to cross under the ovarian
artery here at the internal us of the cervix and is going to enter into the wall of the fundus
or base of the urinary bladder over here we can see the ureter making its way down
and it becomes obscured by the urinary bladder so let's take a look at the urinary bladder here
um and i'll outline it for us we can see over here this urinary bladder is going to be intermediate
between the uterus
and the pubic symphysis and it's going to have an anterior surface
which is in close association with the pubic symphysis a superior surface which is oriented uh
toward the uterus as well as a fundus or
base which is oriented toward the vagina and it's through this fundus or base that we have the
intramural portion of the ureters um the urinary bladder is going to void through
the urethra and the urethra is going to begin just distal to the neck of the bladder
the neck would be here where we have the internal urethral orifice or meatus so over here we can see
this would be the fundus or base of the bladder this would be the superior surface
and this would be the anterior surface uh it's difficult to appreciate the internal urethral
orifice here because it looks like this this bladder was sectioned a little to the left
of the midline and so it would be located approximately there we can see it's kind
of lost and we pick it back up the urethra as we transition into the the penis we can see that this
urinary bladder is intermediate between the pubic symphysis and posterior to that urinary bladder
we're going to have the seminal vesicles which are going to join with the ductus deferens
to form the ejaculatory ducts which are going to feed into the prostatic part of the urethra
here we have an anterior view of the urinary bladder with the superior surface removed and so
here is anterior here is posterior and what i'm outlining here
would be the wall of the bladder and we can see some of the uh the seminal vesicle
along with the distal portions of the ductus deferens there um
we uh we can also see let's see right there and there the ureters moving toward the uh the
fundus of the bladder and the ureteric orifices are there and there there's the interureteric
crest and we have the internal urethral orifice or meatus right there and so this would be the trigon
of the bladder and there's the uvula of the bladder so we've discussed the the location of
the urinary bladder its various surfaces and some of its features thank you very much for your time