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Question 4#

An anatomy class is dissecting out the rectum. What are the correct fascial arrangements that they will encounter during this dissection?

A) The presacral fascia separates the rectum from the presacral venous plexus and the pelvic nerves; Waldeyer fascia extends forward and downward and attaches to the fascia propria at the anorectal junction. Denonvilliers fascia separates the rectum from the prostate and seminal vesicles in men and from the vagina in women
B) The presacral fascia extends forward and downward and attaches to the fascia propria at the anorectal junction; Waldeyer fascia separates the rectum from the prostate and seminal vesicles in men and from the vagina in women; Denonvilliers fascia separates the rectum from the presacral venous plexus and the pelvic nerves
C) The presacral fascia separates the rectum from the prostate and seminal vesicles in men and from the vagina in women; Waldeyer fascia extends forward and downward and attaches to the fascia propria at the anorectal junction; Denonvilliers fascia separates the rectum from the presacral venous plexus and the pelvic nerves
D) The presacral fascia separates the rectum from the prostate and seminal vesicles in men and from the vagina in women; Waldeyer fascia extends backward and downward and attaches to the fascia propria at the anorectal junction; Denonvilliers fascia separates the rectum from the presacral venous plexus and the pelvic nerves

Correct Answer is A

Comment:

The presacral fascia separates the rectum from the presacral venous plexus and the pelvic nerves. The rectosacral fascia ( Waldeyer fascia) extends forward and downward and attaches to the fascia propria at the anorectal junction. Anteriorly, Denonvilliers fascia separates the rectum from the prostate and seminal vesicles in men and from the vagina in women.