Abdo cavity bigger than sight first suggests: high under ribs, and back into buttocks (remember a perforating buttock wound can easily involve the abdomen).
Bisects body between jugular notch & symphysis pubis.
- ie midway between xiphisternum & umbilicus.
Cuts costal margin at tip of 9th costal cartilage
= lateral border of rectus (semilunar line)
Plane passes through the pylorus, and pancreas just above attachment of transverse mesocolon.
Supracolic compartment (liver, spleen, fundus of stomach) lies above; infracolic (small intestine & colon) below.
At this level:
Lower border of L1 vertebra.
SMA leaves aorta
Splenic vein runs behind pancreas; join by superior mesenteric vein
Spinal cord ends as conus medullaris.
Renal hila.
GB fundus (behind R
9th CC)