2024年11月7日 · The abdominal aorta is a large artery in your belly that carries blood from the heart to the lower part of the body. In early fetal development, it forms from two smaller blood vessels, called the dorsal aortae, that join together.

2024年4月21日 · The aorta can be divided into four sections: the ascending aorta, the aortic arch, the thoracic (descending) aorta and the abdominal aorta. It terminates at the level of L4 by bifurcating into the left and right common iliac arteries.

In human anatomy, 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).

2023年11月3日 · As the abdomen and pelvis contain the majority of internal organs, these regions need to be supplied by an extensive network of arteries and veins. That being said, all arterial blood delivered to this region comes via branches of the abdominal aorta, and all venous blood eventually finds its way back to inferior vena cava (IVC).

2023年7月25日 · After crossing the diaphragm into the abdomen, the aptly-named abdominal aorta eventually bifurcates into the common iliac arteries in the lower abdomen. Along the way, the aorta gives rise to the arterial branches that are responsible for transmitting oxygenated blood to all the tissues of the body.

2024年11月25日 · The abdominal aorta (plural: aortas or aortae 4) is the main blood vessel in the abdominal cavity that transmits oxygenated blood from the thoracic cavity to the organs within the abdomen and to the lower limbs. It is a continuation of descending thoracic aorta at T12 posterior to the median arcuate ligament and diaphragmatic crura.

2023年7月25日 · The abdominal aorta terminates as it bifurcates into common iliac arteries, which subsequently provide arterial supply to the pelvis and lower limbs. [1] [2] The aorta receives nutrient-rich blood from the left ventricle after blood is ejected through the aortic valve.

The abdominal aorta is a retroperitoneal structure that begins at the diaphragmatic hiatus and ends at the level of the fourth lumbar vertebra, where it bifurcates into the common iliac arteries.

2023年10月19日 · There are five arteries that branch from the abdominal aorta: the celiac artery, the superior mesenteric artery, the inferior mesenteric artery, the renal arteries and the iliac arteries.

As mentioned previously, the terminal branches of the abdominal aorta are the two common iliac arteries (right and left) arising from its bifurcation. The bifurcation usually occurs at the level of the fourth lumbar vertebra (L4).