Dissection of muscles of male perineum and pelvic diaphragm

Root of penis; inferior fascia of urogenital diaphragm

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Image #174-2

Dissection of muscles of male perineum and pelvic diaphragm Root of penis; inferior fascia of urogenital diaphragm The muscles of the superficial perineal space have been cut away to expose the crura (4) and bulb (5) of the penis in relation to the inferior fascia of the urogenital diaphragm. 1 . Body of penis 2 . Bulbospongiosus muscle (cut off) 3 . Corpus spongiosum of penis 4 . Crus of penis (small, not clearly outlined) 5 . Bulb of penis 6 . Left pointer: Muscle fibers emerging from deep compartment of perineum to join superficial transverse perineal muscle Right pointer: Central tendon of perineum 7 . Sacrotuberous ligament 8 . Levator ani muscle 9 . Fibers of puborectalis muscle (Levator ani muscle) that terminated in connective tissue of ischiorectal fossa 10 . Left pointer: External anal sphincter muscle Right pointer: Anus 11 . Body of pubic bone 12 . Inferior pubic ramus 13 . Obturator membrane 14 . Joint capsule of coccyx 15 . Inferior fascia of urogenital diaphragm 16 . Obturator internus muscle 17 . Ischial tuberosity 18 . Anococcygeal ligament 19 . Coccyx