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Dissection of female pelvis from a lateral approach

Interior of rectum and anal canal, general view

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Image #161-7
Bassett Image
Diagram Image
Legend Image
Dissection of female pelvis from a lateral approach
Interior of rectum and anal canal, general view
A longitudinal incision has been made through the anterior wall of the anal canal and rectum from the anus to the level of the sacral flexure. The wall to the right of the incision has been pulled aside to reveal the lumen of the lower end of the intestinal tract.
  1. Internal iliac artery
  2. Articular surface of sacrum
  3. Piriform muscle
  4. Parietal pelvic fascia
  5. Sacral flexure of rectum
  6. Longitudinal layer of muscular tunic of rectum
  7. Coccyx
  8. Circular layer of muscular tunic of rectum
  9. Mucosal tunic of rectum
  10. Terminal segment of coccyx
  11. Transverse fold of rectum
  12. Levator ani muscle (cut off)
  13. Vagina
  14. Perineal flexure of rectum
  15. Anal column
  16. Anal valve
  17. Anal bend
  18. Internal anal sphincter muscle
  19. External anal sphincter muscle (cut across, slightly to right of midline)
  20. Vestibule of vagina
  21. Sigmoid colon
  22. Mesosigmoid colon
  23. Rectouterine fold
  24. Upper pointer: Ovary Lower pointer: Uterine tube
  25. Uterus
  26. Urinary bladder
  27. Pubic symphysis
  28. Urethra
  29. Clitoris