Dissection of male pelvis from a lateral approach

Pelvic organs in situ, close-up lateral view

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Image #169-7

Dissection of male pelvis from a lateral approach

Pelvic organs in situ, close-up lateral view

Attention is focused in this close-up photograph on the central part of the specimen that is shown in the preceding view. Of particular interest is the relation of the pelvic plexus (20) to the ureter (17), bladder (10), prostate (25) and rectum (22).

1. Ductus deferens
2. Obturator artery
3. External iliac lymph node
4. Obturator nerve
5. Lateral umbilical ligament
6. External iliac vein
7. Parietal peritoneum (external aspect)
8. Iliopubic eminence (preserved for orientation)
9. Iliopectineal arch
10. Urinary bladder
11. Superior vesical artery
12. Pectineus muscle (cut off)
13. Vesical venous plexus
14. Pubic symphysis
15. Puboprostatic ligament
16. Inferior vesical artery
17. Ureter (note associated plexus of nerves and continuation of external layer of muscle of bladder onto lower part of ureter)
18. Internal pudendal artery
19. Sciatic nerve (retracted)
20. Pelvic plexus (note pelvic ganglia within plexus)
21. Prostatic vein
22. Rectum
23. External anal sphincter muscle
24. Nerve to Levator ani muscle
25. Prostate (covered by prostatic fascia)
26. Medial border of Levator ani muscle
27. Right pointer: Superior fascia of urogenital diaphragm Left pointer: Membranous part of urethra (surrounded by sphincter of urethra)
28. Spongy part of urethra (opened)
29. Transverse perineal ligament
30. Dorsal vein of the penis
31. Pubic arcuate ligament (cut in midline)