Matches in SemOpenAlex for { <https://semopenalex.org/work/W29017811> ?p ?o ?g. }
- W29017811 endingPage "368" @default.
- W29017811 startingPage "339" @default.
- W29017811 abstract "This chapter discusses the normal spontaneous and evoked electrical activity in the end-plate zone. It also deals with abnormal spontaneous and provoked activity originating in motoneurons or their axons, or in the muscle fibers (MFs) themselves. In contrast to intramuscular recordings outside the innervation zone where no spontaneous electrical activity is present at rest, spontaneous activity is present in the innervation zone. This activity takes two forms. Both the potentials have irregular discharge frequencies that can be increased by needle movement and blocked by neuromuscular blocking agents. The low-amplitude negative potentials are miniature end-plate potentials (MEPPs). The other biphasic all-or-nothing potentials are MF action potentials. What triggers the biphasic potentials in the innervation zone is not known. Perhaps the intramuscular electrode triggers potentials in the motor axon terminals or preterminals, or disrupts nearby MFs. The latter could release potassium into the extracellular space and depolarize the nerve terminals. Both mechanisms can increase MEPP frequencies and through suprathreshold EPPs trigger postsynaptic muscle fiber action potentials." @default.
- W29017811 created "2016-06-24" @default.
- W29017811 creator A5028728978 @default.
- W29017811 date "1984-01-01" @default.
- W29017811 modified "2023-10-16" @default.
- W29017811 title "NORMAL AND ABNORMAL SPONTANEOUS ACTIVITY IN MUSCLE" @default.
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