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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1988-11-3
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pubmed:abstractText |
The postsynaptic potentials produced in cat genioglossus and styloglossus motoneurons (GG- and SG-Mns) during swallowing were studied. During swallowing elicited by placing water on the dorsum of the tongue, the GG-muscle discharged for 80-210 ms (mean +/- S. D. 123 +/- 31 ms, N = 59) and was abruptly suppressed, and the SG-muscle began discharging in synchrony with the GG-muscle and discharged for 200-360 ms (mean +/- S. D. 247 +/- 36 ms, N = 59). The GG- and the SG-Mns were identified if unitary muscle activity followed the induced spike of the motoneuron one-for-one. During swallowing, excitatory postsynaptic potentials (EPSPs) were evoked in the SG-Mns regardless of the respiratory drive on the SG-Mns, and inhibitory postsynaptic potential (IPSP) or EPSP-IPSP was evoked on the GG-Mns regardless of the respiratory drive on the GG-Mns. By increasing the intracellular concentration of chloride ions, the IPSP elicited in the GG-Mn during swallowing was turned into a depolarizing potential. In immobilized cats, a depolarizing potential and a depolarizing-hyperpolarizing potential sequence was evoked successively on a tongue retractor motoneuron and a tongue protruder motoneuron by repetitive electrical stimulation of the superior laryngeal nerve.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0014-4819
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
71
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
262-72
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pubmed:dateRevised |
2009-11-11
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pubmed:meshHeading |
pubmed-meshheading:3169163-Action Potentials,
pubmed-meshheading:3169163-Animals,
pubmed-meshheading:3169163-Cats,
pubmed-meshheading:3169163-Chlorides,
pubmed-meshheading:3169163-Deglutition,
pubmed-meshheading:3169163-Electric Stimulation,
pubmed-meshheading:3169163-Female,
pubmed-meshheading:3169163-Hypoglossal Nerve,
pubmed-meshheading:3169163-Laryngeal Nerves,
pubmed-meshheading:3169163-Male,
pubmed-meshheading:3169163-Motor Neurons,
pubmed-meshheading:3169163-Tongue
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pubmed:year |
1988
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pubmed:articleTitle |
Excitatory and inhibitory postsynaptic potentials in cat hypoglossal motoneurons during swallowing.
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pubmed:affiliation |
Department of Physiology, School of Dentistry, Tokushima University, Japan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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