title: Synchronization of activity in afferent nerve branches within the frog's muscle spindle.
mesh_terms: D000200:Action Potentials; D000818:Animals; D001001:Anura; D004558:Electric Stimulation; D066298:In Vitro Techniques; D009119:Muscle Contraction; D009470:Muscle Spindles / Q000502:physiology*; D009413:Nerve Fibers, Myelinated / Q000502:physiology; D009475:Neurons, Afferent / Q000502:physiology; D013779:Tetrodotoxin / Q000494:pharmacology
chemical_list: D013779:Tetrodotoxin