Bony Pelvic Wall and Pelvic Cavity

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Bony Pelvic Wall andPelvic Cavity

• Dr. Sama-ul-Haque

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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.

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Bony Pelvis

• Hip bone (Ilium, ischium and pubis)
• Sacrum
• Coccyx
• Joined anteriorly by the pubic symphysis
• Posteriorly by the sacro-iliac joint

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Hip Bone
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Hip Bone
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Sacrum
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Sacrum
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Sacrum
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Bony Pelvis
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Pelvic Inlet and Outlet
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Pelvic Inlet and Outlet
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• The pelvic inlet, or pelvic brim is bounded
• posteriorly by the sacral promontory, laterally
  by the iliopectineal lines, and anteriorly by the
  symphysis pubis
• The pelvic outlet is bounded
• posteriorly by the coccyx,
• laterally by the ischial tuberosities, and
  anteriorly by the pubic arch

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Superior Aperture or Pelvic Inlet
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Inferior Pelvic Border or Pelvic Outlet
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Pelvic Diameters
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Difference Between Male Female Bony PelvisBony
Pelvis Male
Female
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Difference Between Male Female Bony Pelvis
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Difference Between Male Female Bony Pelvis
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Types of Pelvis
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Joints ligaments of the Bony Pelvis
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Joints ligaments of the Bony Pelvis
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Bony Pelvis
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Female Pelvis
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Male Pelvis
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Pelvis
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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

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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

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Peritoneum in Pelvis

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

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Peritoneum in males
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Peritoneum in females
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Peritoneum in males
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Thank you