Abdominal Aorta

From WikiLectures

The abdominal Aorta supplies oxygenated blood to the abdominal organs and other visceral structures through its branches

Position[edit | edit source]

  • It starts posterior to the arcuate ligament at the T12 level from the descending (thoracic) Aorta
  • It ends to the left of the mid-line at the L4 level and branches to become the common iliac arteries

Topographical Relations[edit | edit source]

Anterior[edit | edit source]

  • Celiac trunk, branches and plexus
  • Lesser sac
  • Superior mesenteric, inferior mesenteric and left renal artery
  • Pancreas
  • Duodenum (ascending part)
  • Attachment of mesentery

Posterior[edit | edit source]

  • Lumbar arteries
  • Left lumbar vein
  • Vertebral bodies

Right[edit | edit source]

  • Cisterna chyli
  • Thoracic duct
  • Azygos vein
  • Right crus of diaphragm
  • Inferior Vena Cava

Left[edit | edit source]

  • Left crus of diaphragm
  • Duodenojejunal flexure
  • Sympathetic trunk
  • Inferior mesenteric vessels

Parietal Branches[edit | edit source]

  • Inferior phrenic artery → phrenic and supra-renal branch
  • Renal artery → ureteric and supra-renal branch → apical, upper, middle, lower and posterior branches
  • Gonadal artery
  • Lumbar arteries
  • Spinal arteries
  • Common iliac artery

Visceral Branches[edit | edit source]

  • Renal artery
  • Common iliac artery
  • Medial sacral artery
  • Celiac trunk:-

Left gastric artery → esophageal branch

Splenic artery → short gastric branch, splenic branch and left gastroepiploic artery

Common hepatic artery → gastro-duodenal and proper hepatic artery

  • Superior mesenteric artery:-

Jejunal branch

Ileal branch

Iliocolic artery → appendicular, cecal and ascending colic artery

Right colic artery

Middle colic artery

Inferior pancreatico-duodenal (anterior and posterior) artery

  • Inferior mesenteric artery:-

Left colic artery

Sigmoid artery

Superior rectal artery

Links[edit | edit source]

Bibliography[edit | edit source]

SNELL, Richard S. Clinical Anatomy by Regions. 8th Edition edition. 2004. ISBN 978-0-7817-6404-9.