Term: blastema mesenchyme
Name: blastema
Synonyms: regeneration blastema
Definition: A regenerating tissue composed of a proliferative mass of undifferentiated progenitor cells from which new differentiated structures arise.
Ontology: Anatomy Ontology [ZFA:0001270]

Name: mesenchyme
Synonyms:
Definition: A mesh-like cell arrangement, less compact than an epithelium.
Ontology: Anatomy Ontology [ZFA:0000393]