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Body wall muscle fibers arrayed along the anteroposterior axis. Upon regeneration, these muscles are thought to be established from truncated pre-existing fibers. [ http://www.ncbi.nlm.nih.gov/pubmed/26904543 https://github.com/obophenotype/planaria-ontology/blob/master/metadata/planarefs/planaref-0000005.md ]

Synonyms: outer longitudinal muscle layer

This is just here as a test because I lose it