Degeneration in the efferent nerve endings on the chemoreceptor cells of the carotid labyrinth after the sympathetic nerve trunk section.
D000818:Animals; D002025:Bufonidae; D002628:Chemoreceptor Cells / Q000166:cytology / Q000502:physiology*; D007758:Ear, Inner / Q000294:innervation*; D008854:Microscopy, Electron; D008933:Mitochondrial Swelling; D009410:Nerve Degeneration; D009411:Nerve Endings / Q000166:cytology / Q000502:physiology*; D009476:Neurons, Efferent; D013562:Sympathectomy; D013564:Sympathetic Nervous System / Q000502:physiology*; D013572:Synaptic Vesicles