The terminal branches of the abdominal aorta, the left and right common iliac arteries, arise from the bifurcation in front of the body of L4 vertebra about 1.25 cm to the left of the median plane. The common iliac arteries supply the lower limb, the gluteal region, and the pelvic viscera.
What is the terminal aorta?
A large artery that is the main trunk of the systemic arterial system, arising from the left ventricle and ending at the left side of the body of the fourth lumbar vertebra by dividing to form the right and left common iliac arteries.
What are the 3 major branches of the abdominal aorta?
The abdominal aorta has: Three single anterior visceral branches (coeliac, superior mesenteric artery, inferior mesenteric artery) Three paired lateral visceral branches (suprarenal, renal, gonadal)
What are the 5 branches of the aorta?
Here, we present a unique case with 5 branches of the aortic arch (AA), namely the right common carotid artery, left common carotid artery, left thyrocervical trunk, left subclavian artery and right subclavian artery (RSA), from right to left.
What are the parietal branches of abdominal aorta?
- 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.
What is terminal aortic occlusion?
DEFINITION. Thrombotic occlusion of the terminal aorta is a condition of obstruc- tion within the lumen of the terminal aorta at its bifurcation. The exact pathogenesis of the disease is not clear. The pathologic characteristics, however, are relatively constant.
Where does the thoracic aorta end?
The descending thoracic aorta begins at the lower border of the fourth thoracic vertebra and ends in front of the lower border of the twelfth thoracic vertebra, at the aortic hiatus in the diaphragm where it becomes the abdominal aorta.
How many abdominal aorta branches are there?
The abdominal aorta has three ventral branches (Figs. 5-1 and 5-2). The celiac artery arises at the T12-L1 level.
What is the first branch of the abdominal aorta?
The first and often largest visceral branch of the abdominal aorta is the celiac trunk. The celiac trunk quickly bifurcates or trifurcates into branches. The main branches are the common hepatic and splenic arteries, and, in the case of a trifurcation, the left gastric artery (see Figure 19).
What are the major branches of the abdominal aorta from superior to inferior?
Terms in this set (13) celiac, superior mesenteric, renal, gonadal and inferior mesenteric arteries.
What is vasodilation?
Vasodilation is the widening of blood vessels as a result of the relaxation of the blood vessel’s muscular walls. Vasodilation is a mechanism to enhance blood flow to areas of the body that are lacking oxygen and/or nutrients.
Which is not direct branches of abdominal aorta?
The branches of the abdominal aorta: Paired branches: the middle adrenal, renal, gonadal, inferior phrenic, and lumbar arteries. Unpaired branches: the coeliac, superior mesenteric, inferior mesenteric, and median sacral arteries.
Which is the largest branch of abdominal aorta?
The abdominal aorta is the largest artery in the abdominal cavity. As part of the aorta, it is a direct continuation of the descending aorta (of the thorax).
|Branches||Celiac artery, superior mesenteric artery, inferior mesenteric artery, common iliac, and 6 others|