phalanx endochondral element
http://purl.obolibrary.org/obo/UBERON_0015023
http://purl.obolibrary.org/obo/UBERON_0012150
http://purl.obolibrary.org/obo/UBERON_0002544
http://purl.obolibrary.org/obo/UBERON_0015063