Electron microscopic observations on the medial neurosecretory cells in the brain of the water beetle (Dytiscus marginalis).
D000818:Animals; D001921:Brain / Q000166:cytology; D002462:Cell Membrane; D002466:Cell Nucleolus; D002467:Cell Nucleus; D001517:Coleoptera / Q000033:anatomy & histology*; D003594:Cytoplasmic Granules; D004721:Endoplasmic Reticulum; D006056:Golgi Apparatus; D008854:Microscopy, Electron; D008928:Mitochondria; D009489:Neurosecretion; D009490:Neurosecretory Systems / Q000166:cytology*