solar plexus(redirected from solar plexuses)
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a network of ganglia and nerves in the center of the abdomen, part of the autonomic nervous system and important in control of function of the liver, stomach, kidneys, and adrenal glands. A blow to it may cause great pain or render a person unconscious, because the organs are momentarily thrown out of gear. Although the plexus recovers quickly from this, its effects on the body as a whole last longer. Called also celiac plexus.
ce·li·ac (nerve) plex·us[TA]
the most substantial, superior portion of the abdominal aortic plexus lying anterior to the aorta at the level of origin of the celiac trunk (vertebral level T-12); the celiac ganglia lie within the plexus; it is formed by contributions from the greater splanchnic and vagus (especially the posterior or right vagus) nerves and communicating branches to and from the superior mesenteric and renal plexuses and ganglia; most sympathetic, parasympathetic and visceral afferent fibers serving the abdominal viscera pass through this plexus.
1. The large network of sympathetic nerves and ganglia located in the peritoneal cavity behind the stomach and having branching tracts that supply nerves to the abdominal viscera.
2. The pit of the stomach.
Etymology: L, sol, sun, plexus, network
a dense network of nerve fibers and ganglia that surrounds the roots of the celiac and the superior mesenteric arteries at the level of the first lumbar vertebra. It is one of the great autonomic plexuses of the body in which the nerve fibers of the sympathetic system and the parasympathetic system combine. The denser part of the solar plexus lies between the suprarenal glands, on the ventral surface of the crura of the diaphragm and on the abdominal aorta. Also called celiac plexus.
Relating to the abdominal cavity.
[G. koilia, belly]
solar plexusA large network of autonomic nerves situated behind the stomach, around the coeliac artery. It incorporates branches of the VAGUS NERVE and the splanchnic nerves and sends branches to most of the abdominal organs. Also known as the coeliac plexus. The term derives from the sun-like appearance of the radiating branches.
a network of ganglia and nerves in the center of the abdomen composed principally of the celiac and cranial mesenteric ganglia; it is part of the autonomic nervous system. It is important in the control of the function of the liver, stomach, kidneys and adrenal glands.