Loyola University Medical Education Network Step 3 -
Dissection of the Perineum

  1. This dissection shows the male superficial perineal pouch, which contains the bulb of the penis covered by the bulbospongiosus muscle and the corpora cavernosa covered by the ischiocavernosus muscle. These erectile tissues are shown in a model.

  2. A second model shows the muscles covering the erectile tissues as well as the superficial transverse perineus m. in the superficial pouch. The perineal membrane forms the inferior border of the urogenital diaphragm (or the roof of the superficial pouch).

  3. Complete your dissection of the female by skinning the clitoris and observing the body and glans. In the male penis, separate the corpus spongiosum (with glans attached) from the corpus cavernosa. You will have to do this with a sharp scapel because Buck's fascia is tough.
    HINT: If you insert your thin flexible probe into the penile urethra, it will help you define the corpus spongiosum.


John A. McNulty, Ph.D.
Updated: Oct 2, 2008
Created: Nov 20, 1996