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Abdominal Wall and Cavity

Abdominal Wall and Cavity. Surface Anatomy Muscular Wall and Hernias Peritoneum and Mesenteries. Bony Landmarks around Abdomen. Iliac crest Anterior superior iliac spine (ASIS) Pubic crest Inguinal ligament Costal margin Xiphoid process. Abdominal Wall from surface. Rectus abdominus

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Abdominal Wall and Cavity

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  1. Abdominal Wall and Cavity Surface Anatomy Muscular Wall and Hernias Peritoneum and Mesenteries

  2. Bony Landmarks around Abdomen • Iliac crest • Anterior superior iliac spine (ASIS) • Pubic crest • Inguinal ligament • Costal margin • Xiphoid process

  3. Abdominal Wall from surface • Rectus abdominus • Linea alba • Iliac crest

  4. Muscles of abdominal wall • Rectus abdominus--vertical midline • Three layers form tube • External oblique (“hands-in-pocket”) • Internal oblique (fibers perpendicular to external) • Transverse abdominus (wraps around)

  5. Muscles of abdominal wall--details Please see Fig. 11.11, M&M for accurate labeling.

  6. Muscles of Posterior Abdominal Wall

  7. What is inguinal canal? • Attachment where scrotum “pooches out”--carries all 3 layers of abdominal wall through successive holes • spermatic cord to testicles • NAV • Vas Deferens

  8. Abdominal muscular wall pressurizes abdomen • When? • Cough • Sneeze • Urinate • Defecate • Birth • Lifting For article on abdominal muscles, role of different layers and use of lifting belts: http://www.paulchekseminars.com/articles.cfm?select=16#top

  9. Inguinal hernia results because pressure finds weak spot at inguinal canal

  10. Mesenteries, peritoneum--what is retroperitoneal? (back to basic body plan) [board drawing]

  11. Peritoneal vs Retroperitoneal Laproscopic kidney donation with retroperitoneal access

  12. How will you see anatomy in the future—in your jobs? • Radiological Review of Abdominal Structures—abdominal wall, abdominal organs.

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