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
Linea alba
Iliac crest
Muscles of abdominal wall
Rectus abdominus-vertical midline
Three layers form tube
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External oblique
(“hands-in-pocket”)
Internal oblique (fibers
perpendicular to
external)
Transverse abdominus
(wraps around)
Muscles of abdominal wall--details
Please see Fig. 11.11, M&M for accurate labeling.
Muscles of
Posterior
Abdominal Wall
What is inguinal canal?
Attachment where scrotum “pooches out”--carries all 3 layers of
abdominal wall through successive holes
spermatic cord to testicles
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NAV
Vas Deferens
Abdominal muscular wall
pressurizes abdomen
When?
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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
Inguinal hernia results because pressure
finds weak spot at inguinal canal
(back to basic body plan)
Mesenteries, peritoneum--what is retroperitoneal?
[board drawing]
Peritoneal vs Retroperitoneal
Laproscopic kidney donation with retroperitoneal access
How will you see anatomy in the
future—in your jobs?
Radiological Review of Abdominal
Structures—abdominal wall, abdominal
organs.