title: The fine structure of sensory neurons and their processes in the optic tentacles of Helix aspera.
mesh_terms: D000818:Animals; D001369:Axons; D002466:Cell Nucleolus; D002467:Cell Nucleus; D003594:Cytoplasmic Granules; D004721:Endoplasmic Reticulum; D004847:Epithelial Cells; D004848:Epithelium / Q000294:innervation; D006056:Golgi Apparatus; D002479:Inclusion Bodies; D007365:Intercellular Junctions; D008247:Lysosomes; D008854:Microscopy, Electron; D008928:Mitochondria; D009434:Neural Pathways; D009474:Neurons; D010786:Photoreceptor Cells / Q000166:cytology* / Q000294:innervation; D012908:Snails / Q000166:cytology*