Fusimotor stimulation and the dynamic sensitivity of the secondary ending of the muscle spindle.
The response of secondary endings of de-efferented muscle spindles in the soleus muscle of the anaesthetized cat was recorded during stretching of the muscle at velocities of 5-30 mm/sec. Stimulation of single fusimotor fibres, most and probably all of which were static fusimotor fibres, produced no appreciable change in the normally small dynamic sensitivity of these endings.
D000818:Animals; D002415:Cats; D004558:Electric Stimulation; D009119:Muscle Contraction / Q000502:physiology*; D009210:Myofibrils / Q000502:physiology*; D009411:Nerve Endings / Q000502:physiology*; D009431:Neural Conduction / Q000502:physiology; D009474:Neurons / Q000502:physiology