The abdominal aorta and its bifurcation into the two common iliac arteries (red).
Details
Source
Abdominal aorta
Branches
Common iliac arteries
Vein
Inferior vena cava
Identifiers
Latin
bifurcatio aortae
TA98
A12.2.13.001
TA2
4297
FMA
3795
Anatomical terminology
[edit on Wikidata]
The aortic bifurcation is the point at which the abdominal aorta bifurcates (forks) into the left and right common iliac arteries. The aortic bifurcation is usually seen at the level of L4,[1] just above the junction of the left and right common iliac veins.
The right common iliac artery passes in front of the left common iliac vein. In some individuals, mainly women with lumbar lordosis, this vein can be compressed between the vertebra and the artery. This is the so-called Cockett syndrome or May–Thurner syndrome[2] can cause a slower venous flow and the possibility of deep venous thrombosis in the left leg mainly in pregnancy.
In surface anatomy, the bifurcation approximately corresponds to the umbilicus.[3]
^
Lerona PT, Tewfik HH (June 1975). "Bifurcation level of the aorta: landmark for pelvic irradiation". Radiology. 115 (3): 735. doi:10.1148/15.3.735. PMID 1129492.
^Becquemin JP, Juillet Y, Mexme M, Fiessinger JN, Cormier JM, Housset E (1981). "Clinical presentations of Cockett's syndrome". Nouv Presse Med. 70 (12): 959–62. PMID 7208320.
^Attwell, Lukas; Rosen, Sarah; Upadhyay, Bhavin; Gogalniceanu, Peter (5 June 2015). "The umbilicus: a reliable surface landmark for the aortic bifurcation?". Surgical and Radiologic Anatomy. 37 (10): 1239–1242. doi:10.1007/s00276-015-1500-1. PMID 26044782.
and 28 Related for: Aortic bifurcation information
after, and extending down to the abdomen, where it splits at the aorticbifurcation into two smaller arteries (the common iliac arteries). The aorta distributes...
the aorticbifurcation at the level of the 4th lumbar vertebra. It ends in front of the sacroiliac joint, one on either side, and each bifurcates into...
Aortic dissection (AD) occurs when an injury to the innermost layer of the aorta allows blood to flow between the layers of the aortic wall, forcing the...
aorticbifurcation, and the wall of the infrarenal aorta also contains a lesser proportion of elastin. The mechanical tension in the abdominal aortic...
the iliac bifurcation. The abdominal aorta supplies blood to much of the abdominal cavity. It begins at T12 and ends at L4 with its bifurcation into the...
The aortic arch, arch of the aorta, or transverse aortic arch (English: /eɪˈɔːrtɪk/) is the part of the aorta between the ascending and descending aorta...
(February 1948). "The Syndrome of Thrombotic Obliteration of the AorticBifurcation". Annals of Surgery. 127 (2): 193–206. doi:10.1097/00000658-194802000-00001...
situated on the vertebral bodies anterior to the bifurcation of the abdominal aorta. It bifurcates to form the left and the right hypogastric nerve....
retroaortic groups. The paraaortic group is synonymous with the lateral aortic group. The periaortic lymph node group is divided into three subgroups:...
aortic aneurysm (AAA). When used to treat thoracic aortic disease, the procedure is then specifically termed TEVAR for "thoracic endovascular aortic/aneurysm...
lie near the vertebral column) or prevertebral (which lie near the aorticbifurcation) ganglia extending alongside the spinal column. To reach target organs...
Open aortic surgery (OAS), also known as open aortic repair (OAR), describes a technique whereby an abdominal, thoracic or retroperitoneal surgical incision...
artery, except in cases of transposition of the aortic arch. In the majority of abnormal cases, the bifurcation occurs higher than usual, the artery dividing...
level, below the origins of the two renal arteries, 3-4 cm above the aorticbifurcation, at the level of the umbilicus, and posterior to the inferior border...
then bifurcates into the left anterior descending artery, and the left circumflex artery. The part that is between the aorta and the bifurcation only...
mediastinum can be indicative of several pathologies: aortic aneurysm aortic dissection aortic unfolding aortic rupture hilar lymphadenopathy anthrax inhalation...
The aortic nerve, also known as the aortic depressor nerve, is a branch of the vagus nerve. It supplies autonomic afferent nerve fibers to the peripheral...
at the bifurcation of the aorta or at the origin of the inferior mesenteric artery. It can be the source of a paraganglioma. The term para-aortic body is...
the lower trachea. The carina is around the area posterior to where the aortic arch crosses to the left of the trachea. The azygos vein crosses right to...
the aorticbifurcation at the level of the fourth lumbar vertebra. They end in front of the sacroiliac joint, one on either side, and each bifurcates into...
in the carotid sinus (at the bifurcation of common carotid artery into external and internal carotids) and in the aortic arch. They sense the blood pressure...
and affects the arteries of the lower extremities, those below the aorticbifurcation. A hallmark symptom is claudication, or progressive pain in a limb...
lower extremities. Very rarely the ulcerated plaque is below the aorticbifurcation and those cases the changes occur only in one lower extremity.[citation...
lies just above the aortic valve, within the aortic root, in the right coronary sinus that is the anterior surface of the aortic root. It travels anteriorly...
area at the base of the internal carotid artery just superior to the bifurcation of the internal carotid and external carotid at the level of the superior...
Global Information