Descending Aorta Abdominal portion
  (Abdominal Aorta)

• Origin and Course
  • Continuation of Thoracic Aorta below the Diaphragm
  • Starts at the diaphragm
  • Ends by bifurcating into Common Iliac arteries at the level of L4-5
• Relationship
  • Posteriorly
    • Spine
    • Lumbar arteries and veins
  • Anteriorly
    • Body of Pancreas
    • Left renal vein
    • Horizontal portion of duodenum
  • Right
    • Azygous vein
    • Right diaphragmatic crus
    • IVC below L2
  • Left
    • Left diaphragmatic crura
• Branches
  • Ventral
    • Celiac
    • SMA
    • IMA
  • Dorsal
    • Lumbar
    • Median sacral
  • Lateral
    • Renal
    • Inferior phrenic
    • Middle supra renal
    • Gonadal