Opening of the abdominal wall
The abdominal Paroi is made up of several Muscle S (abdominal and dorsal) of which the provision leaves several particular anatomical openings.
The triangle of Small Jean-Louis
Still called trigonal lumbar ( Trigonum Lumbale ), it is delimited in top and inside by the large Muscle dorsal and its fibrous prolongation, the lombo-crowned aponévrose, in top and outwards by the external oblique Muscle of the abdomen and in bottom by the wing of the iliaque Os. This triangular opening constitutes a weak point of the posterior wall of the abdomen, but it is rare that it can deliver passage to a hernia, because its floor muscular, is consisted of the oblique small Muscle of the abdomen
The quadrilateral of Grynfeltt
From each with dimensions of the lumbar rachis, in the layers deep of the abdominal wall, one individualizes a space released by the Muscle obliques intern of the abdomen outwards, the muscle dorsal in inside and the twelfth coast in top.
The channel inguinal
The Canal inguinal is an opening delivering passage to the Spermatic cord at the man. It is located at the antéro-side part of the abdominal wall. It is limited in bottom by the pubis and the ligament crural, and in top by the Aponévrose S of the muscles transverse and oblique external. The limit médial being the right Muscle of the abdomen.
White line
The white line is a zone of weakness located between the two muscles right of the abdomen which are joined one to the other by their aponévrose which amalgamates forming a vertical line called white line.
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