The document discusses the abdominal aorta, including its course through the abdomen and its relations to surrounding structures. The abdominal aorta descends from the thoracic aorta and passes anterior to the upper four lumbar vertebrae. It has posterior relations to the lumbar vertebrae and left third and fourth lumbar veins. Anteriorly, it relates to structures such as the splenic vein, left renal vein, head of the pancreas, superior mesenteric artery, and inferior vena cava. It gives off several branches that supply the abdomen.

1. Abdominal Aorta
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2. Course & Relations
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3. Thoracic aorta
Abdominal
aorta
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4. Abdominal
aorta
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5. Relations
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6. Posterior Relations
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7. Abdominal
aorta
Upper 4 lumbar
vertebrae
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8. Left 3rd
& 4th
lumbar
veins
Inf. Vena cava
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9. Anterior Relations
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11. Abdominal
Aorta
Splenic vein
Left renal vein
Head of
pancreas (cut)
Superior
mesenteric a.
3rd
part of
duodenum
Inferior vena
cava Dr. Sherif Fahmy

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13. Side Relations
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14. Crura of Diaphragm
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15. Sympathetic
chain
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16. Inferior
vena cava
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17. Para-aortic
lymph nodesCisterna
chyli
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18. Branches
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22. Surface Anatomy
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24. Common Iliac Artery
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29. External Iliac Artery
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33. External iliac
a.
Inferior
epigastric a.
Fascia transversalis
Cremastric a.
Pubic branch
Obturator a.Pubic branch
Course & beanches of Inferior
epigastric artery
Inner Aspect of Anterior Abdominal wall
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