Peritonium

• Peritoneum


  Glistening, transparent serous membrane
• Peritoneum


  • Consists of two continuous layers:
  • Parietal peritoneum – lining the internal surface of the abdomino-pelvic wall
  • Visceral peritoneum – investing organs / viscera
• Peritoneum and Viscera are located in the abdominopelvic cavity
• Parietal


  • Sensitive to pressure, pain, heat and cold
  • Pain is generally localized
  • Served by the same blood and lymphatic vasculature and same somatic nerve supply as the region of the wall it lines
• Visceral


  • Insensitive to touch, heat, cold and stimulated primarily by stretching
  • Pain is poorly localized
  • Served by the same blood and lymphatic vasculature and same visceral nerve supply as the organs it covers
• Peritoneum


  Membrane lining the abdomino-pelvic cavity
• Viscera


  Organs located in the abdomino-pelvic cavity
• Peritoneum and Viscera are located in

  The abdomino-pelvic cavity
• Intraperitoneal organs


  • Covered with visceral peritoneum
• Extraperitoneal, Retroperitoneal and Subperitoneal organs

  • Outside, external or posterior to the parietal peritoneum
  • Partially covered with peritoneum (usually on one surface)
• Peritoneal organs


  • Esophagus
  • Stomach
  • 1st duodenum
  • Jejunum / ileum
  • Cecum & appendix
  • Transverse / sigmoid colon
  • Superior rectum
  • Liver, biliary tree
  • Spleen