The largest and highest
group of prevertebral sympathetic ganglia, situated on the superior
part of the
abdominal aorta, on
either side of the
origin of the
coeliac artery; contains sympathetic
neurons whose
unmyelinated postganglionic axons
innervate the stomach, liver, gallbladder, spleen, kidney,
little intestine, and
ascending and
transverse colon. H
Synonym:
ganglia coeliaca,
semilunar ganglion,
solar ganglia, Vieussens' ganglia, Willis'
centrum nervosum.