• M cell
    • Postembryonic mesoblast of pedigree MSapaapp.
  • MSapaapp nucleus
    • nucleus of pedigree MSapaapp
  • obsolete M lineage
  • M lineage cell
    • A cell that is the M blast cell or is a lineal descendant of M.
  • body wall muscle cell from M lineage
    • post-embryonic body wall muscle cell derived from M lineage.