[The effects of cold on facial nerve function].
Synonyms like "paralysie á frigore" and "rheumatic palsy" imply a dysfunction of the vasa nervorum during coldness application. Cooling the nerve, however, only reduces perfusion by 18%. Cooling of the facial nerve with pure ice to 0 degrees C leads to a functional loss due to a blockade of the temperature-controlled Na-K-channels. The vasomotor regulation of the nerve vessels under these conditions seems to be relatively unimportant.
Schadel
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A
HNO-Klinik am Klinikum Mannheim, Universität Heidelberg.
D000818:Animals; D003080:Cold Temperature / Q000009:adverse effects*; D005154:Facial Nerve / Q000098:blood supply* / Q000502:physiology; D005158:Facial Paralysis / Q000209:etiology; D006801:Humans; D007053:Ice / Q000009:adverse effects; D015221:Potassium Channels / Q000378:metabolism; D011817:Rabbits; D012039:Regional Blood Flow; D015222:Sodium Channels / Q000378:metabolism; D014463:Ultrasonography; D014661:Vasoconstriction; D014666:Vasomotor System / Q000502:physiology*
D007053:Ice; D015221:Potassium Channels; D015222:Sodium Channels
Die Auswirkung von Kälte auf die Funktion des Nervus facialis.