Practice question

Compensatory regeneration represents distinct strategy where organ mass restored without blastema formation and without loss of functional differentiation. Hepatocytes continue synthesizing plasma proteins, metabolizing, while dividing after partial hepatectomy driven by IL-6, TNF-alpha, HGF signaling. No dedifferentiation to progenitor occurs, lineage remains restricted, organ architecture restored by hypertrophy and hyperplasia of functional cells. This contrasts epimorphosis requiring dedifferentiation and morphallaxis involving repatterning with transdifferentiation. Maintaining differentiated function during proliferation ensures physiological demands met throughout restoration process, defining hallmark of compensatory hyperplasia in liver and pancreatic islets.