You can see the aforementioned structure in this diagram.
There are questions about splinting on Pastest and UW. UW q id 11885 shows another scenario. Good images on the explanation though. Nulliparous, nonobese 39 y/o pelvic pressure & constipation and does splinting to defecate, bla bla bla. Exam: irregularly enlarged uterus. Dx was posterior subserosal uterine leiomyoma and rectocele was on the options... Splinting is NOT just for rectocele.
"splinting" (pushing the vaginal canal with fingers to defecate) is commonly seen with a rectocele.
+Pelvic organ prolapse includes pelvic pressure ("feeling a bulge or that something is falling out of the vagina")
+Posterior vaginal wall prolapse (rectocele) can cause constipation
+splinting is common but not uterine enlargement
+Premenopausal, nonobese nulliparous women are at lowest risk for pelvic organ prolapse.
https://www.pelvicexercises.com.au/wp-content/uploads/2019/05/Rectocele-prolapse-min.png
Stool seems to go towards the vaginal wall, but doesn't come out. pushing the POSTERIOR vaginal wall towards the bum will help with defecation
submitted by โdrachenx(72)
These kinds of questions are really hard because I've never seen female reproductive structures irl. :c