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Video Slides

Osteology

• Sacrum

  • Anterior sacral foramina

  • Posterior sacral foramina

Muscles

• Pelvic diaphragm

  • Levator ani m.

  • (Ischio)coccygeus m.

  • Urogenital hiatus

Perineum

• Urogenital triangle

• Anal triangle

• Perineal body

Erectile bodies

• Corpus cavernosum of clitoris/penis

  • Crus (crura = plural)

    • Ischiocavernosus m.

• Corpus spongiosum

  • Vestibular bulb/Bulb of penis

    • Bulbospongiosus m.

  • Glans clitoris/penis

Rectum

• Rectal ampulla

• Transverse folds of rectum

Anal Canal

• External anal sphincter

• Anal columns

• Pectinate line

Urethra

• Prostatic urethra

• Membranous urethra

• Spongy (penile) urethra

Nerves

• Sacral plexus

  • Lumbosacral trunk

  • Ventral rami (S1-S4)

    • Pudendal n.

    • Parasympathetics

      • Pelvic splanchnic nn. 

• Sympathetics

  • Sacral sympathetic trunk

Vasculature

• Abdominal aorta

  • Gonadal a. & v. (ovarian/testicular)

  • Common iliac aa. & vv.

• External iliac a. & v.

• Internal iliac a. & v.

  • Posterior division

  • Anterior division

    • Umbilical a.

    • Obturator a.

    • Uterine a.