Objectives 2.4 Abdominal region II

Organs

Supracolic viscera:

  • Stomach
    • Body
    • Greater curvature
    • Lesser curvature
    • Cardia
    • Fundus
    • Pylorus
    • Gastric folds (gastric rugae)
    • Pyloric sphincter
  • Duodenum
    • Superior (first) part
    • Descending (second) part
    • Horizontal (third) part
    • Ascending (fourth) part
    • Circular folds (plicae circulares)
    • Ampulla of duodenum (duodenal cap)
    • Major duodenal papilla
    • Minor duodenal papilla
  • Liver
    • Right lobe
    • Left lobe
    • Quadrate lobe
    • Caudate lobe
    • Diaphragmatic surface
    • Bare area
    • Inferior border
    • Visceral surface
    • Portal triad
    • Porta hepatis
  • Gallbladder
  • Pancreas
    • Head
    • Uncinate process
    • Neck
    • Body
    • Tail
  • Spleen

 

Infracolic Viscera:

  • Duodenum
  • Jejunum
  • Ileum
  • Ascending colon
  • Transverse colon
    • Right colic (hepatic) flexure
    • Left colic (splenic) flexure
  • Descending colon
  • Cecum
  • Appendix
  • Sigmoid colon
    • Haustra
    • Teniae coli
    • Omental appendices (epiploic appendages)
    • Semilunar folds (plicae semilunaris)
  • Rectum
  • Kidneys
    • Renal (fibrous) capsule
    • Renal cortex
    • Renal columns
    • Renal medulla
    • Renal sinus
    • Renal pyramids
    • Renal papilla
    • Minor calyx
    • Major calyx
    • Renal pelvis
  • Ureter
  • Suprarenal (adrenal) glands

 

Ducts

  • Right hepatic duct
  • Left hepatic duct
  • Common hepatic duct
  • Cystic duct
  • Common bile duct
  • Main pancreatic duct
  • Accessory pancreatic duct (if present)
  • Hepatopancreatic ampulla (Ampulla of Vater)

 

Ligaments

  • Coronary ligament
  • Falciform ligament
  • Round ligament of the liver (ligamentum teres hepatis)
  • Ligamentum venosum

 

Arteries

  • Main branches of the celiac trunk:
    • Left gastric artery
    • Splenic artery
      • Left gastro-omental (gastroepiploic) artery
    • Common hepatic artery
      • Hepatic artery proper
        • Right gastric artery
        • Left hepatic artery
        • Right hepatic artery
          • Cystic artery
      • Gastroduodenal artery
        • Supraduodenal artery
        • Superior pancreaticoduodenal artery
        • Right gastro-omental (gastroepiploic) artery
  • Superior Mesenteric Artery
    • Inferior pancreaticoduodenal artery
    • Small Intestinal (jejunal and ileal) arteries
    • Ileocolic artery
      • Appendicular artery
    • Right colic artery
    • Middle colic artery
  • Inferior Mesenteric Artery
    • Left colic artery
    • Sigmoid arteries
    • Superior rectal artery
  • Marginal Artery of Drummond
  • Abdominal aorta
  • Common iliac arteries (right and left)
  • Renal arteries (right and left)
  • Testicular/ovarian arteries (right and left)

 

Veins

  • Splenic vein
  • Superior mesenteric vein
  • Inferior mesenteric vein
  • Hepatic portal vein
  • Hepatic veins (x4)
  • Inferior vena cava
  • Common iliac veins (right and left)
  • Renal veins (right and left)
  • Right testicular/ovarian vein

 

Muscles

  • Psoas major
  • Psoas minor
  • Quadratus lumborum
  • Iliacus
  • Diaphragm
  • Apertures (openings) of diaphragm:
    • Caval foramen
    • Esophageal hiatus
    • Aortic hiatus

 

Nerves

  • Genitofemoral nerve (L1/L2)
  • Subcostal nerve (T12)
  • Iliohypogastric nerve (L1)
  • Ilioinguinal nerve (L1)
  • Lateral cutaneous nerve of the thigh (lateral femoral cutaneous nerve) (L2/L3)
  • Femoral nerve (L2/L3/L4)
  • Obturator nerve (L2/L3/L4)
  • Lumbosacral trunk (L4/L5)
  • Sympathetic trunk

 

Clinical Correlations

  • Gastric ulcers
  • Duodenal ulcers
  • Ileal (Meckel) diverticulum
  • Carcinoma of stomach – Troisier’s sign
  • Head of the pancreas tumor
  • Cholecystectomy
  • Portal-systemic (portocaval) anastomoses (portal hypertension)
  • Gastroesophageal
    • Esophageal varices
  • Paraumbilical
    • Caput medusa
  • Anorectal
    • Hemorrhoids
  • Ischemia of intestine
  • Arterial anastomoses between:
    • Celiac trunk and superior mesenteric arteries
    • Superior mesenteric and Inferior mesenteric arteries
  • Abdominal aortic aneurysm
  • Nutcracker syndrome
  • Testicular varicocele
  • Kidney stones (renal calculi)
  • Common constriction sites of the ureter
  • Horseshoe kidney
  • Psoas abscess – referred pain
  • (Acquired) Hiatal hernia