sympathetic ganglion morphology trait prevertebral ganglion morphology trait 2010-04-21T04:17:52Z Any measurable or observable characteristic related to the shape, structure, color, or pattern of the sympathetic ganglia located in front of the vertebral column and associated with the major branches of the abdominal aorta; these include the celiac, aorticorenal, superior and inferior mesenteric ganglia. Trait.ontology VT:0015051 smb