-Theperitoneum&peritonealcavity
—— The peritoneum & peritoneal cavity
I.General descriptionI)Thedefinitionisalayerofserousmembranelyingtheinner surface of the abdominal cavity &covering the organs in the abdominalcavity.is composed of a single layer ofmesothelium can minimize friction & resist infection
Ⅰ）The definition • is a layer of serous membrane lying the inner surface of the abdominal cavity & covering the organs in the abdominal cavity. • is composed of a single layer of mesothelium • can minimize friction & resist infection Ⅰ. General description
Ⅱ) Parts1.Parietal peritoneumlies the inner surface of the abdominalwall, pelvic wall & the inferior surface ofthe diaphragm2.Visceral peritoneum·covers the surfaces of the visceraBoth of them are continuous membranes
Ⅱ）Parts 1. Parietal peritoneum • lies the inner surface of the abdominal wall, pelvic wall & the inferior surface of the diaphragm 2. Visceral peritoneum • covers the surfaces of the viscera Both of them are continuous membranes
Theperitonealcavitythepotential space betweentheparietal &visceralperitoneumVThedifferencesbetweenmale&femaleperitonealcavity male: the cavity is completely closed. female: it's open to the exterior of the bodythrough the genital tubes
The peritoneal cavity • the potential space between the parietal & visceral peritoneum ✓ The differences between male & female peritoneal cavity • male: the cavity is completely closed • female: it’s open to the exterior of the body through the genital tubes
ⅡI.The relationship between viscera &peritoneum1.The intraperitoneal viscerais completely surroundedbyPstomach, jejunum, ileum ...2.The mesoperitoneal visceramost surfaces is wrapped by Pliver, gallbladder, uterus...3.Theretroperitoneal visceraonlyonesurfaceiscoveredbyPkidney, pancreas
Ⅱ. The relationship between viscera & peritoneum • is completely surrounded by P. stomach, jejunum, ileum . 1. The intraperitoneal viscera 2. The mesoperitoneal viscera 3. The retroperitoneal viscera • most surfaces is wrapped by P. liver, gallbladder, uterus. • only one surface is covered by P. kidney, pancreas
III.Parietalreflections. The peritoneum reflects from one viscus to another or fromthe abdominal wall to the viscus. Through the process, theperitoneum forms the peritoneum reflection.·According to the different location of the reflection, thereflectionshavedifferentterms
• The peritoneum reflects from one viscus to another or from the abdominal wall to the viscus. Through the process, the peritoneum forms the peritoneum reflection. • According to the different location of the reflection, the reflections have different terms. Ⅲ. Parietal reflections
I ) The omentathe P. between the stomach & other viscera1. The lesser omentum: between the portal hepatis & the lessercurvature of the stomach as well as thecommencement of the duodenum2.The greater omentum.extendsdownwardsfromthegreatercurvature of the stomach
• the P. between the stomach & other viscera • between the portal hepatis & the lesser curvature of the stomach as well as the commencement of the duodenum Ⅰ）The omenta 1. The lesser omentum 2. The greater omentum • extends downwards from the greater curvature of the stomach
Ⅱ) The mesenteries1.Themesenteryofsmall intestine2.Themesoappendix3.Transversemesocolon4. Sigmoid mesocolon2
Ⅱ）The mesenteries 1. The mesentery of small intestine 3. Transverse mesocolon 4. Sigmoid mesocolon 1 2 2. The mesoappendix
Ⅲ)Theligaments: a double fold connects an organ with another organor to the abdominal wall①Falciform lig②Thecoronarylig Suspensory lig. of the duodenum / Treitz's ligJejunum1
• a double fold connects an organ with another organ or to the abdominal wall ① Falciform lig. ② The coronary lig. ③ Suspensory lig. of the duodenum / Treitz’s lig. Ⅲ）The ligaments ① ② ③ Jejunum
IV)Recesses andpouches1.RecessesThehepatorenal recess:situated between the rightlobe of the liver & right kidney
Ⅳ) Recesses and pouches 1. Recesses The hepatorenal recess • situated between the right lobe of the liver & right kidney