L5 dorsal root ganglion morphology trait Any measurable or observable characteristic related to the shape, structure, color, or pattern of the group of nerve cell bodies located on the dorsal spinal roots within the vertebral column at the level of the fifth lumbar vertebra. L5 DRG morphology trait L5 dorsal root ganglia morphology trait L5 ganglion morphology trait L5 sympathetic ganglia morphology trait L5 sympathetic ganglion morphology trait Trait.ontology VT:0001022 lumbar dorsal root ganglion morphology trait