PERITONEUMPERITONEUM The largest serous sac that lines The largest serous sac that lines
abdominal wall and covers abdominal abdominal wall and covers abdominal viscera. So it could be:viscera. So it could be:• 1- 1- Visceral layer:Visceral layer: cover organ. cover organ.• 2- 2- Parietal layer:Parietal layer: lines wall. lines wall.• 3- 3- Peritoneal fold:Peritoneal fold: becomes in contact becomes in contact
other peritoneal layer.other peritoneal layer.• 4- 4- Peritoneal cavity:Peritoneal cavity: It separates It separates
visceral from parietal. It is potential space.visceral from parietal. It is potential space.Dr. Sherif Fahmy
Sex differences:Sex differences:- Peritoneal sac is a closed in male but in Peritoneal sac is a closed in male but in
females it is opened by uterine tubes.females it is opened by uterine tubes.- Functions of peritoneum:Functions of peritoneum:
1- provides smooth surfaces for viscera to avoid 1- provides smooth surfaces for viscera to avoid fricction.fricction.2- Protects against infection as it contains 2- Protects against infection as it contains antibodies.antibodies.3- Allows rapid healing of abdominal wounds.3- Allows rapid healing of abdominal wounds.4- Can localize infection (policman).4- Can localize infection (policman).5- Storage of fat.5- Storage of fat. Dr. Sherif Fahmy
Parts of peritoneal sacParts of peritoneal sac It is divided into:It is divided into:
1- 1- Greater sac:Greater sac: It is the part It is the part of peritoneal sac that fills of peritoneal sac that fills most of abdominal cavity.most of abdominal cavity.2- 2- Lesser sac:Lesser sac: It is the part of It is the part of peritoneal sac that is present peritoneal sac that is present behind stomach.behind stomach.
Dr. Sherif Fahmy
Peritoneal FoldsPeritoneal Folds 1- Ligaments.1- Ligaments. 2- Omenta (lesser & greater).2- Omenta (lesser & greater). 3- Mesentery (folds of 3- Mesentery (folds of
intestine).intestine).
Dr. Sherif Fahmy
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