title: Multiple versus single modulatory targets in motor control circuits.
mesh_terms: D000818:Animals; D001048:Aplysia; D006321:Heart / Q000294:innervation; D006339:Heart Rate; D008959:Models, Neurological; D009046:Motor Neurons / Q000502:physiology*; D009424:Nervous System Physiological Phenomena; D009489:Neurosecretion