Specialization for rapid excitation in fast squid tentacle muscle involves action potentials absent in slow arm muscle
Gilly WF, Renken C, Rosenthal JJC, Kier WM. Specialization for rapid excitation in fast squid tentacle muscle involves action potentials absent in slow arm muscle. Journal Of Experimental Biology 2020, 223: jeb218081. PMID: 31900349, DOI: 10.1242/jeb.218081.Peer-Reviewed Original ResearchMeSH KeywordsAction PotentialsAnimalsDecapodiformesMuscle Fibers, SkeletalPatch-Clamp TechniquesSodium ChannelsConceptsAction potentialsMuscle fibersConventional whole-cell patch recordingWhole-cell patch recordingsExcitatory postsynaptic potentialsSodium channel mRNACross-striated muscle fibersVoltage-dependent sodium channelsTentacle musclesTwitch-tetanus ratioMuscle fiber typesTransverse muscle fibersPostsynaptic potentialsPatch recordingsSpaced action potentialsArm musclesChannel mRNAFast muscle fiber typesHigh shortening velocitiesSodium channelsShortening velocityProminent expressionRapid excitationUndetectable expressionMuscle