Which of the following would be most likely to be damaged by a stab wound into the ischiorectal (ischioanal) fossa 2 cm lateral to the anal canal?
The pudendal nerve is found about 2 cm lateral to the anal canal. Therefore, it is the structure most likely to be damaged by the stab wound. The crus of the penis is the lateral pa of the corpus cavernosum found at the base of the penis. It is anterior, not lateral, to the anal canal. The perineal body is a structure found in the female only. It is a fibromuscular mass found in the plane between the anal canal and the perineal membrane that serves at the convergence of several muscles.It is anterior to the anal canal. The inferior rectal aery is a branch of the internal pudendal aery that delivers blood to the inferior pa of the rectum.It would not be injured by the stabbing because it is located on the surface of the rectum, not 2 cm lateral to the anal canal.
Crus of the Penis
Perineal Body
Pudendal Nerve
Inferior Rectal Aery