[Skeletal muscle motor unit activity in cats during cold tremors].
The electrical activity of single motor units of the cat m. sartorious during the preshivering tone and shivering tremor revealed a steady frequency 5--10/sec. The transition from preshivering tone to shivering tremor involved recruitment of motor units with similar properties: the low--threshold units. The response of motor units to local thermal stimuli applied to vascular thermoreceptors depended on the level of peripheral temperature.
D000818:Animals; D001831:Body Temperature; D001833:Body Temperature Regulation; D002415:Cats; D003080:Cold Temperature; D004594:Electrophysiology; D009046:Motor Neurons / Q000502:physiology*; D009119:Muscle Contraction; D009132:Muscles / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology; D011999:Recruitment, Neurophysiological; D013823:Thermoreceptors / Q000502:physiology*; D014680:Veins / Q000294:innervation
Aktivnost' dvigatel'nykh edinits skeletnykh myshts koshki vo vremia kholodovogo tremora.