Abstract:
:The antidromic activation of facial nucleus montoneurones has been studied in acute experiments on cats by means of extra- and intracellular recording techniques. Time and amplitude characteristics of separate components of the antidromic action potential and the after--potentials accompanying it have been analyzed. A correlation is found between the duration of the falling phase of the soma-dendritic component of the action potential, the duration of its after-hyperpolarization and impulse conduction time in the axon. The dendritic origin of after-depolarizing processes is shown. It is concluded that, since there is no recurrent collateral pathway in facial motoneurones, the modulating effect of spike after-potentials on the proper excitability of facial motoneurones acquires great functional significance.
journal_name
Neurosciencejournal_title
Neuroscienceauthors
Fanardjian VV,Manvelyan LR,Kasabyan SAdoi
10.1016/0306-4522(83)90270-1subject
Has Abstractpub_date
1983-08-01 00:00:00pages
815-22issue
4eissn
0306-4522issn
1873-7544pii
0306-4522(83)90270-1journal_volume
9pub_type
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