Abstract：
:Synaptic responses evoked in phrenic motoneurones (PMNs) by stimulation of the superior laryngeal nerve (SLN) were analysed in anaesthetised cats. Stimulation of the SLN was followed by inhibition of ipsilateral phrenic nerve discharge with the latency of 9.5 +/- 2.3 ms (mean +/- S.D.) and hyperpolarizations of ipsilateral PMN membrane potentials (latency, 8.4 +/- 2.1 ms) which were observed after stimuli applied both during inspiration and expiration. During the injection of Cl ions, the hyperpolarizations were either reversed or flattened in all 28 tested PMNs, thus indicating a direct inhibition. The possibility that the inhibitory postsynaptic potentials are produced by segmental respiratory interneurones is discussed.
journal_name
Brain Resjournal_title
Brain researchauthors
Bellingham MC,Lipski J,Voss MDdoi
10.1016/0006-8993(89)90530-1subject
Has Abstractpub_date
1989-05-08 00:00:00pages
391-5issue
2eissn
0006-8993issn
1872-6240pii
0006-8993(89)90530-1journal_volume
486pub_type
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