Control of Morphogenesis by Nervous System-derived Factors
Intercellular communication is an essential acquisition of metazoans which allows a coordinated existence of individual cells in multicellular organisms. The invention of a nervous system during evolution made intercellular communication very rapid and effective. In addition to functioning to transmit changes in membrane potential, the role of the nervous system gains increasing interest in embryogenesis, and in regenerative processes. Hydra provides an ideal system to investigate the roots and the evolutionary development of these diverse tasks of the nervous system. Being evolutionary very old, and belonging to the first organisms to develop a nervous system, Hydra is an exciting animal for the study of the early functions of the nervous system.
KeywordsNerve Cell Interstitial Cell Mucus Cell Head Regeneration Epithelial Stem Cell
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