title: [The release of biological messengers].
mesh_terms: D000200:Action Potentials; D001370:Axonal Transport; D001665:Binding Sites; D001692:Biological Transport; D002118:Calcium / Q000502:physiology; D002395:Catecholamines / Q000378:metabolism; D002463:Cell Membrane Permeability; D004702:Endocrine Glands / Q000502:physiology*; D006801:Humans; D008854:Microscopy, Electron; D009411:Nerve Endings / Q000502:physiology; D009474:Neurons / Q000502:physiology*; D009995:Osmosis; D013564:Sympathetic Nervous System / Q000502:physiology; D009435:Synaptic Transmission; D013572:Synaptic Vesicles / Q000502:physiology; D013574:Synaptosomes
chemical_list: D002395:Catecholamines; D002118:Calcium
vernacular_title: Frisättning av biologiska signalsubstanser.