What is the naval cavity?
Naval cavity, is that space which extends from above, where bounded by the diaphragm, from below; from behind by lumbar vertebrae and psoas muscle; from either side, by the quadratus lumborum, and the transversalis muscle which separates it anteriorly from abdominal viscera. This term is a name that is rarely seen, as abdominal cavity will generally encompass this area.
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