Multiple choice

Among the following, the shortest and the least dilatable part of urethra is

  1. Prostatic urethra

  2. Pre-prostatic urethra

  3. Membranous urethra

  4. Spongy urethra
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The intermediate part of male urethra (membranous portion) is the shortest, the 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.

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