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Laboratory 42. The Male Perineum and the Penis
Step 14. The Contents of the Pudendal Canal

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On the lateral wall of the ischioanal fossa, identify the pudendal (Alcock's) canal and its contents. This fascial compartment is located in the inferior border of the obturator internus fascia. It extends from the ischial spine to the posterior edge of the ischiopubic ramus. Open the canal and identify the internal pudendal vessels and the three branches of the pudendal nerve:

The latter divides into superficial cutaneous branches called the posterior scrotal nerves and deep muscular branches.

Links and References:
Grant's: 3.61
Netter (1ed.): 359, 360 (2ed.): 355, 356
Rohen/Yokochi: 330, 331