For the dissection of the perineum, you should find:

Arteries

• perineal
• inferior rectals
• internal pudendal a. (in pudendal canal)

Nerves

• posterior scrotal
• inferior rectals
• pudendal n. (in pudendal canal)

Muscles

• external anal sphincter
• obturator internus m.
• levator ani m.
• bulbospongiosus
• ischiocavernosus
• sphincter urethra

Other

• ischial tuberosities
• sacrotuberous ligaments
• pubic symphysis
• sacrum/coccyx
• anus

John A. McNulty, Ph.D.

Last Updated: Apr 20, 1998 Created: Sep 11, 1996