title: [Regulation of snail heart contractions by neurons of the visceral ganglion].
abstract: The system of neurons regulating the frequency and strength of heart beats was studied in the snail subesophageal ganglia. Three out of four neurons exerted a short-term phasic effect on the heart. Stimulation of the V6 neuron led to a prolonged increase in the frequency and strength of the heart beats. Activity of two inhibitory cells (about 1-3/sec) was observed whereas excitatory neurons were silent. All the efferent neurons were involved in parallel and did not affect each other.
mesh_terms: D000818:Animals; D004558:Electric Stimulation; D005728:Ganglia, Sympathetic / Q000166:cytology*; D006321:Heart / Q000294:innervation*; D006339:Heart Rate; D006372:Helix, Snails / Q000502:physiology; D009200:Myocardial Contraction; D009476:Neurons, Efferent / Q000502:physiology*
vernacular_title: Reguliatsiia sokrashcheniĭ serdtsa vinogradnoĭ ulitki neĭronami vistseral'nogo gangliia.