Membranous urethra

Membranous Urethra

Anatomy Less

Membranous urethra

to get instant updates about 'Membranous Urethra' on your MyPage. Meet other similar minded people. Its Free!


All Updates

The intermediate part of male urethra (membranous portion) is the shortest, least dilatable, and, with the exception of the external orifice, the narrowest part of the canal.

It extends downward and forward, with a slight anterior concavity, between the apex of the prostate and the bulb of the urethra, perforating the urogenital diaphragm about 2.5 cm. below and behind the pubic symphysis.

The hinder part of the urethral bulb lies in apposition with the inferior fascia of the urogenital diaphragm, but its upper portion diverges somewhat from this fascia: the anterior wall of the membranous urethra is thus prolonged for a short distance in front of the urogenital diaphragm; it measures about 2 cm. in length, while the posterior wall which is between the two fasciƦ of the diaphragm is only 1.25 cm. long.

The membranous portion of the urethra is completely surrounded by the fibers of the Sphincter urethrae membranaceae.

In front of it the deep dorsal vein of the penis enters the pelvis between the transverse ligament of the pelvis and the arcuate pubic ligament; on either side near its termination are the bulbourethral glands.

Additional images

Image:Illu penis.jpg|Structure of the penis
Image:Gray1156.png|Vertical section of bladder, penis, and urethra.

External links

  • - "The Female Pelvis: The Urethra"
  • - "The Male Pelvis: The Urethra"

Read More

No feeds found

Posting your question. Please wait!...


No messages found
Suggested Pages
Tell your friends >
about this page
 Create a new Page
for companies, colleges, celebrities or anything you like.Get updates on MyPage.
Create a new Page
 Find your friends
  Find friends on MyPage from