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The celiac artery is the first major branch of the descending abdominal aorta, branching at a 90° angle. [1] [2] This occurs just below the crus of the diaphragm. [2] This is around the first lumbar vertebra. [3] There are three main divisions of the celiac artery, and each in turn has its own named branches:
The celiac plexus is often popularly referred to as the solar plexus. In the context of sparring or injury, a strike to the region of the stomach around the celiac plexus is commonly called a blow "to the solar plexus". In this case it is not the celiac plexus itself being referred to, but rather the region around it.
Its fibers synapse at the celiac ganglia. [4] The nerve contributes to the celiac plexus, a network of nerves located in the vicinity of where the celiac trunk branches from the abdominal aorta. The greater splanchnic nerve modulates the activity of the enteric nervous system of the foregut.
The sympathetic trunk is a fundamental part of the sympathetic nervous system, and part of the autonomic nervous system. It allows nerve fibres to travel to spinal nerves that are superior and inferior to the one in which they originated. Also, a number of nerves, such as most of the splanchnic nerves, arise directly from the trunks.
Prevertebral ganglia (or collateral ganglia, [1] or preaortic ganglia [2]) are sympathetic ganglia situated along the midline, anterior to the aorta and the vertebral column. The prevertebral ganglia are the celiac ganglia (including the aorticorenal ganglia), the superior mesenteric ganglion, and the inferior mesenteric ganglion. [3]
2.3.3 thyrocervical trunk. 2.3.4 costocervical trunk. ... 4.2 celiac. 4.3 superior mesenteric. ... Meningeal branches of vertebral artery; Posterior spinal artery.
Other fibers from lateral grey column neurons pass through the sympathetic trunk without synapsing there. The greater splanchnic nerve leaves the vertebral levels T5-T9 and synapses in the abdomen in the celiac ganglia, which innervates the celiac artery [5] (splanchnic nerves are the nerves that innervate thoracic and abdominal viscera). [2]
In medicine, the median arcuate ligament syndrome (MALS, also known as celiac artery compression syndrome, celiac axis syndrome, celiac trunk compression syndrome or Dunbar syndrome) is a rare [1] condition characterized by abdominal pain attributed to compression of the celiac artery and the celiac ganglia by the median arcuate ligament. [2]