title: The role of the nervous system in regeneration, growth and cell differentiation in Hydra. I. Distribution of nerve elements during hypostomal regeneration.
mesh_terms: D000818:Animals; D001699:Biometry; D002452:Cell Count; D002454:Cell Differentiation; D002467:Cell Nucleus; D006829:Hydra / Q000166:cytology / Q000254:growth & development*; D002479:Inclusion Bodies; D009415:Nerve Net; D009416:Nerve Regeneration; D009420:Nervous System / Q000166:cytology; D009424:Nervous System Physiological Phenomena; D009474:Neurons / Q000166:cytology; D009489:Neurosecretion; D013194:Staining and Labeling; D013997:Time Factors