title: Ultrastructural evidence for a granule-containing sensory-motor-interneuron in Hydra littoralis.
mesh_terms: D000818:Animals; D005075:Biological Evolution; D002466:Cell Nucleolus; D002467:Cell Nucleus; D002923:Cilia; D003594:Cytoplasmic Granules; D006056:Golgi Apparatus; D006829:Hydra / Q000166:cytology*; D008854:Microscopy, Electron; D008870:Microtubules; D008928:Mitochondria; D009046:Motor Neurons / Q000166:cytology*; D009415:Nerve Net / Q000166:cytology; D009469:Neuromuscular Junction / Q000166:cytology; D009474:Neurons / Q000166:cytology*; D012270:Ribosomes; D013569:Synapses / Q000166:cytology; D013572:Synaptic Vesicles