Superior Mesenteric Artery

• Origin and course
  • The superior mesenteric artery arises from the anterior surface of abdominal aorta. 
  • Arises 1 cm below celiac trunk
  • It extends along the mesentery to the right lower quadrant
• Branches
  • Anastamoses with Inferior mesenteric artery
• Relationship
  • It is accompanied by superior mesenteric vein
  • Anteriorly
    • Splenic vein 
    • Body of Pancreas
    • Left renal vein
  • Posteriorly
    • Uncinate process of pancreas
    • Horizontal portion of duodenum
• Supplies
  • Small bowel
  • Cecum
  • Ascending colon
  • Right 2/3 of transverse colon