The abdominal wall or abdominal wall comprises all anatomical structures that serve to delimit the front and sides of the abdomen (abdomen).
These anatomical structures are from the outside in:
- the dermis ( skin )
- the subcutis (subcutaneous tissue )
- the superficial body fascia ( fascia abdominalis superficialis )
- the abdominal muscles including their tendon plates and fasciae
- the inner abdominal fascia ( Fascia transversalis or Fascia endoabdominalis )
- the peritoneum , which is the parietal peritoneum that lies against the inner abdominal fascia.
The abdominal wall serves, among other things, to protect the abdominal organs , the storage of fat in the subcutis, through its muscular part of the mobility of the trunk , as auxiliary breathing muscles during exhalation and by means of the so-called abdominal press to support defecation , in case of bladder emptying disorders also emptying the bladder .
The abdominal wall itself is under pressure from the organs located in the abdominal cavity and the intraperitoneal fat tissue, and in the presence of ascites , the fluid contained therein as well.
When inflammation in the abdomen involving the peritoneum there may be a reflex guarding get the abdominal muscles.