develops from develops from anatomical structure mixed endoderm/mesoderm-derived structure mixed ectoderm/mesoderm/endoderm-derived structure Grouping term for query purposes. Notes that the developmental relationships are being refined such that most structures should develop in whole from at most one layer, but may have contributions from multiple An anatomical structure that develops from the ectoderm, mesoderm and endoderm. UBERON:0000078 ectoderm endoderm mesoderm ectoderm-derived structure