Terminology Peritoneum -thin,transparent serous membrane in the abdomen and pelvis Peritoneal cavity-the potential space lined by peritoneum in the abdomen and pelvis Parietal peritoneum-lines the wall of the abdomen and pelvis Visceral peritoneum-covers the organs (viscera) Intraperitoneal-organs within double layers of the peritoneal
Terminology • Peritoneum – thin, transparent serous membrane in the abdomen and pelvis • Peritoneal cavity – the potential space lined by peritoneum in the abdomen and pelvis • Parietal peritoneum – lines the wall of the abdomen and pelvis • Visceral peritoneum– covers the organs (viscera) • Intraperitoneal – organs within double layers of the peritoneal
Terminology:Peritoneal Structures Mesentery-a double-layer of peritoneum that connects an organ to the body wall;transmits nerves and blood vessels to an organ from the body wall. Mesocolon-mesentery of the colon Peritoneal ligaments-2 or more layers of peritoneum that connect an organ to other organs or to the body wall. Omentum-a double-layer of peritoneum that connects the stomach to other organs -Greater omentum -Lesser omentum
Terminology: Peritoneal Structures • Mesentery – a double-layer of peritoneum that connects an organ to the body wall; transmits nerves and blood vessels to an organ from the body wall. • Mesocolon – mesentery of the colon • Peritoneal ligaments – 2 or more layers of peritoneum that connect an organ to other organs or to the body wall. • Omentum– a double-layer of peritoneum that connects the stomach to other organs – Greater omentum – Lesser omentum
The relationship of viscera to peritoneum cavity Mesentery Peritoneal cavity Parietal layer 1.Intraperitoneal Peritoneum Visceral layer structures Intraperitoneal organ 2.Retroperitoneal Subperitoneal Structures
The relationship of viscera to peritoneum cavity 1.Intraperitoneal structures 2.Retroperitoneal & Subperitoneal Structures
Intraperitoneal Structures Transverse mesocolor Mesentery of stomach,superior part of duodenum,jejunum,ileum, the small Sigmoid cecum,appendix,transverse intestine mesocolon and sigmoid colon,spleen ovary(mesovarium)and
Transverse mesocolon Mesentery of the small intestine Sigmoid mesocolon Intraperitoneal Structures stomach, superior part of duodenum, jejunum, ileum, cecum, appendix, transverse and sigmoid colon, spleen ， ovary(mesovarium) and uterine tube (mesosalpinx)
Retroperitoneal Structures Most of duodenum Most of pancreas Ascending Descending colon
Retroperitoneal Structures - Most of duodenum - Most of pancreas - Ascending & Descending colon