1. ABDOMINAL AORTA
&
INFERIOR VENA CAVA
Dr. Ahmed Fathalla Ibrahim

2. ABDOMINAL AORTA BEGINNING:
A continuation of descending thoracic aorta after passing through aortic opening of diaphragm (opposite T12)
TERMINATION:
Divides into 2 common iliac arteries (opposite lower part of L4)

3. ANTERIOR RELATIONS OF ABDOMINAL AORTA

4. ANTERIOR RELATIONS OF ABDOMINAL AORTA
2 pancreas, 2 intestine, 2 veins, 2 superior mesenteric
Body & uncinate process of pancreas
Splenic & left renal veins
Third part of duodenum
Coils of small intestine
Superior mesenteric vessels

5. RELATIONS OF ABDOMINAL AORTA
POSTERIOR:
Bodies of lumbar vertebrae

6. RELATIONS OF ABDOMINAL AORTA
RIGHT:
IVC
Cysterna chyli
Azygos vein
Right crus
LEFT:
Left sympathetic trunk
Left psoas major
Left crus

7. BRANCHES OF ABDOMINAL AORTA

8. SINGLE BRANCHES OF ABDOMINAL AORTA
Three arising from anterior aspect of aorta:
Celiac trunk (upper part of L1)
Superior mesenteric (lower part of L1)
Inferior mesenteric (L3)
One arising from termination of aorta:
Median sacral (lower part of L4)

9. PAIRED BRANCHES OF ABDOMINAL AORTA
Three pairs arising from anterior aspect of aorta:
Inferior phrenic (upper part of L1)
Suprarenal (lower part of L1)
Gonadal (testicular or ovarian) (L3)
One pair arising from lateral aspect of aorta:
Renal (L2)

10. PAIRED BRANCHES OF ABDOMINAL AORTA
Four pairs arising from posterior aspect of aorta:
Lumbar
One pair arising from termination of aorta:
Common iliac (Lower part of L4)

11. COMMON ILIAC ARTERIES BEGINNING:
Terminal branches of abdominal aorta (lower part of L4)
TERMINATION:
Each one bifurcates into external & internal iliac arteries (lower part of L5)
COURSE & RELATIONS:
Descend along medial border of psoas
End anterior to sacroiliac joint
The bifurcation is crossed by ureter

12. EXTERNAL ILIAC ARTERY BEGINNING:
One of 2 terminal branches of common iliac artery (lower part of L5)
TERMINATION:
Continues as femoral artery, behind inguinal ligament
BRANCHES:
Deep circumflex iliac
Inferior epigastric

13. INFERIOR VENA CAVA BEGINNING:
Formed by union of 2 common iliac veins (L5)
TERMINATION:
Pierces central tendon of diaphragm at level of T8
Opens in the right atrium at level of right 6th costal cartilage

14. RELATIONS OF INFERIOR VENA CAVA

15. RELATIONS OF INFERIOR VENA CAVA
ANTERIOR:
Liver
Epiploic foramen,
First part of duodenum,
Head of pancreas
Third part of duodenum
Superior mesenteric vessels
Right gonadal vessels
Coils of small intestine

16. RELATIONS OF INFERIOR VENA CAVA
POSTERIOR:
Bodies of lumbar vertebrae
Right crus
Right renal artery
Right sympathetic trunk

17. RELATIONS OF INFERIOR VENA CAVA
RIGHT:
Right psoas major
Right ureter
LEFT:
Abdominal aorta

18. TRIBUTARIES OF INFERIOR VENA CAVA

19. TRIBUTARIES OF INFERIOR VENA CAVA
Right & left inferior phrenic veins
Right & left renal veins
Right & left lumbar veins
Right & left common iliac veins
Right suprarenal vein
Right gonadal vein
Hepatic veins

20. N.B.
Left suprarenal vein & left gonadal vein drain into left renal vein
Median sacral vein drains into left common iliac vein
Superior mesenteric vein joins splenic vein to form portal vein
Inferior mesenteric vein drains into splenic vein
There is no celiac vein

21. N.B. Tributaries of IVC = paired branches of abdominal aorta
Left suprarenal & left gonadal veins
+ hepatic veins