2. Muscles of pelvis
Pelvic Viscera

3. 1. GRETER PELVIS ( false pelvis, pelvis major), 2
1. GRETER PELVIS ( false pelvis, pelvis major), 2. LESSER PELVIS (true pelvis, pelvis minor) 3

4. Obturator internus N: S1 & S2, L5
F: lateral rotation of thigh (extention)
Abduction (flexion)

5. Piriformis
N: S1 & S2, L5
F: stability of hip joint, lateral rotation of thigh (extention)
Abduction (flexion)

7. Pelvic wall foramens

9. pelvic diaphragm
Levator ani
Coccygeus

10. Levator ani Urogenital hiatus O: pubic body, obturator fascia,
ischial spine
I: prineal body
Anorectal junction
Ext. sphincter of anus
Anococcygeal lig
N: S4
Function: sphincter
Anorectal angle
Urogenital hiatus

12. Coccygeus
O: ischial spine
I: lateral border of coccyx & S5
N: S4 & S5

13. Pelvic outlet

14. The Pelvic Inlet AP= true conjugate= 10-11cm Transverse= 12.5-13cm
Oblique = cm 14

15. Perineal membrane

19. Episiotomy

22. Rectum 22

23. Anal canal 23

24. Urinary bladder Ureter Urethra
Pelvic viscera
Urinary bladder
Ureter
Urethra 24

25. 25

26. 26

27. Interior of bladder
Interureteric crest 2.5 cm 27

28. Suprapubic sundage 28

29. 29

30. 30

31. 31

32. 32

33. 33

34. 34

35. Thanks