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Bony Pelvic Wall and Pelvic Cavity

Bony Pelvic Wall and Pelvic Cavity. Dr. Sama-ul-Haque. Objectives. Name the structures of the pelvic wall (hip, sacrum, muscles and fascia). Identify the general features of the hip and sacrum. Compare between the male and female hip & sacrum.

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Bony Pelvic Wall and Pelvic Cavity

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  1. Bony Pelvic Wall andPelvic Cavity Dr. Sama-ul-Haque

  2. Objectives • Name the structures of the pelvic wall (hip, sacrum, muscles and fascia). • Identify the general features of the hip and sacrum. • Compare between the male and female hip & sacrum. • Recognize the name, type, ligaments & articular surfaces of joints between them. • Describe the anatomy of the pelvic cavity (inlet, outlet, content). • Discuss the general organization of the pelvic organs in male & female. • Describe the peritoneal relations of the pelvic organs.

  3. Bony Pelvis • Hip bone (Ilium, ischium and pubis) • Sacrum • Coccyx • Joined anteriorly by pubic Symphysis • Posteriorly by sacro-iliac joint

  4. Hip Bone

  5. Hip Bone

  6. Sacrum

  7. Sacrum

  8. Sacrum

  9. Bony Pelvis

  10. The pelvic inlet or brim of the true pelvis is bounded: • Anteriorly:Symphysis pubis, • Laterally: Iliopectineal lines • Posteriorly: Sacral promontory. • The pelvic outlet of the true pelvis bounded: • Anteriorly: : pubic arch • Laterally:ischialtuberosities • Posteriorly: Coccyx • The sacrotuberous ligaments also form part of the margin of the outlet.

  11. Pelvic Inlet and Outlet

  12. The pelvic cavity is the space between the inlet and the outlet. It is a short, curved canal, with a shallow anterior wall and a much deeper posterior wall. • The axis of the pelvis is an imaginary line joining the central points of the anteroposterior diameters from the inlet to the outlet and is the curved course taken by the baby's head as it descends through the pelvis during childbirth.

  13. Pelvic Inlet and Outlet

  14. Superior Aperture or Pelvic Inlet

  15. Inferior Pelvic Border or Pelvic Outlet

  16. Pelvic Diameter

  17. Difference Between Male & Female Bony PelvisBony Pelvis Male Female

  18. Difference Between Male & Female Bony Pelvis

  19. Difference Between Male & Female Bony Pelvis

  20. Types of Pelvis

  21. Types of Pelvis

  22. Joints & ligaments of the Bony Pelvis

  23. Joints & ligaments of the Bony Pelvis

  24. Bony Pelvis

  25. Female Pelvis

  26. Male Pelvis

  27. Pelvis

  28. Greater Pelvis (pelvis major) • Location of some abdominal viscera (ileum and sigmoid colon) • Bounded by abdominal wall anteriorly, the iliac fossa posteriolaterally and L5 & S1 vertebrae posteriorly • Also Known as False Pelvis

  29. Lesser Pelvis ( pelvis minor) • Location of pelvic viscera: the urinary bladder and reproductive organs such as the uterus and ovaries • Bounded by the pelvic surfaces of the hip bones, sacrum, and coccyx • Limited inferiorly by the musculofascial pelvic diaphragm • Also known as True Pelvis

  30. Peritoneum in Pelvis • Continuous with peritoneum of abdomen • Drapes over pelvic viscera in the midline to form: • Pouches • Folds between viscera and pelvic walls

  31. Peritoneum in males

  32. Peritoneum in females

  33. Peritoneum in males

  34. Thank you

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