Abdominal wall

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Abdominal wall

  1. 1. Abdominal Wall and Cavity <ul><li>Surface Anatomy </li></ul><ul><li>Muscular Wall and Hernias </li></ul><ul><li>Peritoneum and Mesenteries </li></ul>
  2. 2. <ul><li>Iliac crest </li></ul><ul><li>Anterior superior iliac spine (ASIS) </li></ul><ul><li>Pubic crest </li></ul><ul><li>Inguinal ligament </li></ul><ul><li>Costal margin </li></ul><ul><li>Xiphoid process </li></ul>Bony Landmarks around Abdomen
  3. 3. Abdominal Wall from surface <ul><li>Rectus abdominus </li></ul><ul><li>Linea alba </li></ul><ul><li>Iliac crest </li></ul>
  4. 4. Muscles of abdominal wall <ul><li>Rectus abdominus--vertical midline </li></ul><ul><li>Three layers form tube </li></ul><ul><ul><li>External oblique (“hands-in-pocket”) </li></ul></ul><ul><ul><li>Internal oblique (fibers perpendicular to external) </li></ul></ul><ul><ul><li>Transverse abdominus (wraps around) </li></ul></ul>
  5. 5. Muscles of abdominal wall--details Please see Fig. 11.11, M&M for accurate labeling.
  6. 6. Muscles of Posterior Abdominal Wall
  7. 7. What is inguinal canal? <ul><li>Attachment where scrotum “pooches out”--carries all 3 layers of abdominal wall through successive holes </li></ul><ul><li>spermatic cord to testicles </li></ul><ul><ul><li>NAV </li></ul></ul><ul><ul><li>Vas Deferens </li></ul></ul>
  8. 8. Abdominal muscular wall pressurizes abdomen <ul><li>When? </li></ul><ul><ul><li>Cough </li></ul></ul><ul><ul><li>Sneeze </li></ul></ul><ul><ul><li>Urinate </li></ul></ul><ul><ul><li>Defecate </li></ul></ul><ul><ul><li>Birth </li></ul></ul><ul><ul><li>Lifting </li></ul></ul>For article on abdominal muscles, role of different layers and use of lifting belts: http:// www.paulchekseminars.com/articles.cfm?select =16#top
  9. 9. Inguinal hernia results because pressure finds weak spot at inguinal canal
  10. 10. Mesenteries, peritoneum--what is retroperitoneal? (back to basic body plan) [board drawing]
  11. 11. Peritoneal vs Retroperitoneal Laproscopic kidney donation with retroperitoneal access
  12. 12. How will you see anatomy in the future—in your jobs? <ul><li>Radiological Review of Abdominal Structures —abdominal wall, abdominal organs. </li></ul>

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