−Table of Contents

PERITONEUM

PERITONEUM

Peritoneum
layers
- outer parietal layer
  - lines inner surface of abdominal and pelvic walls
  - lower surface if diaphragm
  - lateral plate mesoderm
    - derived from somato-pleuric layer
- inner visceral layer
  - lines outer surface of viscera
  - lateral plate mesoderm
    - splanchnopleuric layer
Folds of peritoneum by which viscera are suspended
- Embryological
  - ventral mesogastrium
    - ventral part
      - falciform ligament
      - right and left triangular ligaments
      - superior and inferior layers of coronary ligament
    - dorsal part
      - lesser omentum
  - dorsal mesogastrium
    - greater or caudal part
      - elongates to form greater omentum
    - spleen divides in in to
      - ventral part
      - dorsal part
- Connections
  - omentum
  - Mesoappendix
  - Mesentry
  - Mesoovarium
  - Mesometrium
  - Mesocolon
  - ligaments
    - gastrosplenic ligament
  - Foramen of winslow / Omental bursa
- relation to peritoneum
  - retroperitoneal organs
    - duodenum , pancreas , kidney , ureter , suprarenal gland
  - subperitoneal
    - urinary bladder , prostrate , seminal vesicle , cervix , vagina
  - intraperitoneal
    - stomach , jejunum , ileum, caecum , appendix
  - partial peritoneal - pars peritoneal
    - ascending and descending colon , rectum
Functions of peritoneum
- movement of viscera
- protection of viscera
- absorption and dialysis
- healing power and adhesions
- storage of fat
Peritoneal cavity
- Tracing
- Lesser sac
- Special regions
  - Supracolic compartment or subphrenic space
  - Infracolic compartment
  - Paracolic gutter
  - Rectouterine pouch
  - Peritoneal Fossa ( recess )

Layers

Folds of peritoneum

Omentum

Mesoappendix

Mesentery

Mesocolon

Foramen of Winslow/omental bursa

Peritoneal Cavity

Tracing

Lesser sac or omental bursa

SPECIAL REGIONS

Supracolic compartment or subphrenic space

Infracolic compartment

Paracolic gutter

Rectouterine Pouch

Peritoneal Fossa (Recess)