Abdominal Wall and Cavity

1
Abdominal Wall and Cavity

• Surface Anatomy
• Muscular Wall and Hernias
• Peritoneum and Mesenteries

Hastaneciyiz.blogspot.com
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, MM 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.cf
m?select16top
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 futurein your
jobs?

• Radiological Review of Abdominal
  Structuresabdominal wall, abdominal organs.