Topographical Anatomy of the Abdomen

Abdominal wall

- skin
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Camperīs  layer (panniculus adiposus telae subcutaneae abdominis)
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fascia abdominis subcutanea Scarpae (stratum membranosum telae subcutaneae abdominis )
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fascia abdominis superficialis
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m. obliquus abdominis externus
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m. obliquus abdominis internus
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m. transversus abdominis
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(m. rectus in the sheath of m. recti abd., m. pyramidalis)
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fascia transversalis
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lamina parietalis peritonei

  • anulus umbilicalis (chorda a. umbilicalis, lig. teres hepatis)
  • linea alba
  • linea arcuata (Douglasi)
  • linea semilunaris (Spiegeli)
  • anulus inguinalis superficialis et profundus
  • Bursa omentalis
    (Lesser sac)

  • ventrally: stomach, omentum minus, lig. gastrocolicum
  • dorsally: peritoneum (ceiling), peritoneum + pankreas, duodenum (middle), omentum majus - posterior lamina (bottom)
  • cranially: lobus caudatus hepatis, left diaphragmatic vault
  • caudally: colon transversum, mesocolon transvesum, omentum majus (with recessus inferior b.o.)
  • left: spleen, lig. gastrophrenicum , lig. gastrosplenicum (-lienale), lig. splenorenale (lieno-) (containing vasa splenica+cauda pancreatis), lig. phrenicosplenicum, lig. splenocolicum
  • vestibulum bursae omentalis
  • recessus superior bursae omentalis
  • recessus inferior bursae omentalis
  • isthmus bursae omentalis (tuber omentale)
  • recessus splenicus (lienalis) bursae omentalis
  • Foramen omentale (epiploicum s.Winslowi)

  • ventrally: omentum minus (lig. hepatoduodenale)
  • dorsally: peritoneum (lig. hepatorenale)
  • cranially:liver (processus caudatus lobi caudati)
  • caudally: bulbus (ampulla) duodeni
  • entrance to bursa omentalis

    Trigonum sternocostale (Fissura Larreyi s. Morgagni)

  • ventrally: m. transversus thoracis
  • medially: pars sternalis diaphragmatis
  • laterally: pars costalis diaphragmatis
  • vasa thoracica interna pierce the diaphragma ventrally of m. transversus thoracis (and change into vasa epigastrica sup.)

    possible site for henia to occur

    Trigonum lumbocostale (Bochdaleki)

  • dorsally: costa duodecima (XII.)
  • medially: pars lumbalis diaphragmatis
  • laterally: pars costalis diaphragmatis
  • possible site for henia to occur

    Ligamentum hepatoduodenale

    = right edge of lesser omentum
  • beginning: porta hepatis
  • end: pars superior duodeni (bulbus duodeni)
  • a. hepatica propria (ventromedially)
  • ductus hepaticus communis (ventrolaterally), connects with ductus cysticus to form ductus choledochus
  • vena portae (dorsally)
  • Trigonum cystohepaticum (Caloti)

  • cranially:liver (porta hepatis, lobus quadratus)
  • medially: ductus hepaticus communis
  • laterally: ductus cysticus
  • a. cystica (ligation)
  • Recessus peritonei

    pars supramesocolica cavitatis peritonealis

  • bursa omentalis (recessus sup.,inf.,splenicus)
  • recessus subphrenicus, subhepaticus (hepatorenalis)
  • pars inframesocolica cavitatis peritonealis
  • recessus duodenalis sup., inf., paraduodenalis, retroduodenalis
  • recessus ileocaecalis sup., inf., retrocaecalis
  • recessus intersigmoideus (Treitzi)
  • sulci paracolici
  • fossa supravesicalis, inguinalis med. et lat.
  • fossa paravesicalis, pararectalis
  • female: excavatio vesicouterina, rectouterina (spatium Douglasi), fossa ovarica
  • male: excavatio rectovesicalis
  • Canalis inguinalis

    4 - 5 cm long cleft slanting ventromediocaudally

  • cranially: caudal borders of m. obliquus abd. internus and m. transvesus abd. (falx inguinalis)
  • caudally: lig. inguinale (Falloppii, Pouparti, Vesalii)
  • ventrally: aponeurosis m. obliqui abd. externi
  • dorsally: fascia transversalis
  • beginnning: anulus inguinalis profundus (lig. interfoveolare, falx inguinalis)
  • end: anulus inguinalis superficialis (crura med. et lat., fibrae intercrurales)
  • n. ilioinguinalis
  • r. genitalis n. genitofemoralis
  • vestigium processus vaginalis
  • a. cremasterica / a. lig. teretis uteri
  • lymphatic vessels
  • female: lig. teres uteri
  • male: ductus deferens
  • a. testicularis
  • a. ductus deferentis
  • plexus pampiniformis
  • plexus deferentialis et testicularis
  • Trigonum inguinale (Hesselbachi)

  • laterally: lig. interfoveolare, vasa epigastrica inferiora
  • medially + cranially: falx inguinalis
  • caudally: lig. inguinale
  • bottom: fascia transversalis
  • possible site for henia to occur