Reinnervated muscles fail to produce stretch reflexes

摘要: 1. We studied the stretch-evoked reflex organization of hind limb muscles in two decerebrate cats 36 mo after unilateral section and immediate surgical repair common nerve supplying lateral gastrocnemius (LG) soleus (S) muscles. 2. The production considerable force by reinnervated response to electrical stimulation uninjured nerves indicated substantial functional recovery motor units. However, reduction responsiveness stretch untreated medial (MG) muscle some deficit normal synaptic integration. 3. Stretch failed elicit autogenic excitation S LG. This failure was observed whether were quiescent or contracting other reflexes. 4. heterogenic abnormal. evoke reflexes both MG LG produce MG. 5. These findings demonstrate deficiencies proprioceptive feedback from lead us expect incomplete function section.