title: Muscle spindle response to active muscle shortening in Bufo marinus.
mesh_terms: D000200:Action Potentials; D000818:Animals; D001001:Anura; D004558:Electric Stimulation; D009119:Muscle Contraction; D009470:Muscle Spindles / Q000502:physiology*; D009475:Neurons, Afferent / Q000502:physiology