limb segment
http://purl.obolibrary.org/obo/UBERON_0002529
http://purl.obolibrary.org/obo/UBERON_0014892
http://purl.obolibrary.org/obo/UBERON_0002101
http://purl.obolibrary.org/obo/UBERON_0010538
http://purl.obolibrary.org/obo/UBERON_0010758