5 天之前 · The abdominal aorta starts just below the diaphragm and runs down the back of the abdomen. It supplies oxygenated blood to vital organs, including the kidneys, stomach, intestines, and liver, through three main branches: the celiac artery, superior mesenteric artery, and …

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). [1] The abdominal aorta begins at the level of the diaphragm, crossing it via the aortic hiatus, technically behind the diaphragm, at the vertebral level of T12. [1] .

腹主动脉（英語： abdominal aorta ）是人体腹腔中最大的动脉。 它是降主动脉的腹腔部分，由胸主动脉穿过主动脉裂孔延伸而来。. 腹主动脉自T12椎体高度开始，随后分为多个分支，供应腹部和骨盆器官，最后在第4腰椎下缘分为左、右 髂总动脉 （ 英语 ： Common iliac artery ） 的两支。

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.

2023年7月25日 · The abdominal aorta gives rise to five major branches: the celiac trunk, superior mesenteric artery, left and right renal arteries, and inferior mesenteric artery. The celiac trunk mainly supplies organs of the foregut, while the superior and inferior mesenteric arteries supply organs of the midgut and hindgut, respectively.

The abdominal aorta is a retroperitoneal structure beginning, as an extension of the thoracic aorta, at the aortic hiatus of the diaphragm. The abdominal aorta gradually diminishes in diameter as it descends the abdomen just left of the midline next to the vertebral bodies. It delivers blood to all the abdominopelvic organs and structures.

2025年2月4日 · The abdominal aorta is a continuation of the thoracic aorta beginning at the level of the T12 vertebrae. It is approximately 13cm long and ends at the level of the L4 vertebra. At this level, the aorta terminates by bifurcating into the right and left common iliac arteries that supply the lower body.

The aorta is a large elastic artery characterized by the ability to expand and recoil in sequence with the heart to distribute blood to the body. 9 The abdominal aorta (AA) gives rise to the arteries supplying the abdominal viscera, lumbar spine, and lower extremities, and it is commonly divided into suprarenal and infrarenal components.

2024年5月17日 · With an initial diameter of one inch, the aorta is the biggest artery in the human body. Through systemic circulation, it provides the body with oxygenated blood after receiving the cardiac output from the left ventricle. The four parts of the aorta are the abdominal aorta, thoracic (descending) aorta, ascending aorta, and aortic arch.

2025年2月10日 · Gross anatomy Origin. It is a continuation of descending thoracic aorta at T12 posterior to the median arcuate ligament and diaphragmatic crura.. Course. It descends caudally in the retroperitoneum, anterior, and slightly to the left of the lumbar vertebral bodies.The IVC lies to its right.. Between the coeliac and superior mesenteric artery origins, it is …