title: Anatomical evidence for multiple sources of action potentials in the afferent fibers of muscle spindles.
mesh_terms: D000200:Action Potentials; D000818:Animals; D001001:Anura; D002415:Cats; D005290:Ferric Compounds; D005295:Ferrocyanides; D009470:Muscle Spindles / Q000502:physiology* / Q000648:ultrastructure; D009475:Neurons, Afferent / Q000502:physiology; D011894:Rana pipiens; D013194:Staining and Labeling / Q000379:methods
chemical_list: D005290:Ferric Compounds; D005295:Ferrocyanides