title: Morphological substrates of conduction in the colonial hydroid Hydractinia echinata. 1. An ectodermal nerve net.
mesh_terms: D000818:Animals; D003063:Cnidaria / Q000166:cytology* / Q000648:ultrastructure; D004475:Ectoderm / Q000166:cytology / Q000648:ultrastructure; D008854:Microscopy, Electron; D009415:Nerve Net / Q000166:cytology* / Q000648:ultrastructure; D009420:Nervous System / Q000166:cytology*; D009431:Neural Conduction; D013569:Synapses / Q000648:ultrastructure