Peritoneum niche

The peritoneum niche is the formation of a pocket in the peritoneum , depending on the depth as an excavation , a recessus or a fossa .

In humans, only the beginning and end of the duodenum are intraperitoneally. This causes the transition to the jejunum , the duodenojejunal flexure of alcove formations on the front side as a superior recess duodenalis , at the back - visible after folding up the mesentery as - recess retroduodenalis and recess paraduodenalis be referred to. A loop of the small intestine can get caught in these pockets as an internal break .

On the appendix , the caecal plica vascularis is located on the back of the caecal plica, the superior iliocaecal recess, which is open towards the head , the inferior iliocaecal recess is located on the back of the inferior iliocaecal plica, and the inferior iliocaecal recess is open towards the tail, and the narrow retrocaecal recess on the side .

On Colon is caudal to the suspension of the sigmoid colon of the caudal open, funnel-shaped recess intersigmoideus .

On the anterior abdominal wall between the plica umbilicalis mediana and the plica umbilicalis medialis lie the flat supravesical fossa , between the plica umbilicalis medialis and the plica umbilicalis lateralis the fossa inguinalis medialis (medial inguinal fossa ) and to the side of the plica umbilicalis lateralis the fossa inguinalis lateralis (laterale).

In the area of the basin are in women between the uterus and rectum , the recto-uterine ( Douglas space ) between the uterus and bladder , the Excavatio vesico-uterine , in men between the rectum and bladder, the rectovesical pouch .

literature

• Herbert Lippert: Anatomy compact . Springer, Berlin 2013, ISBN 978-3-642-95726-0 , pp. 159-160 .