... and larger fast glycolytic muscle fibres. Despite no detectable change in maximal performance of sprint-trained lizards, we detected that they had significantly larger slow oxidative muscle fibre areas compared with the other treatments. Treatment groups did not differ in the proportion of number of fibre...

... reside in the embryonic somite and external cell layer and contribute to muscle fibres in embryo, larval, juvenile and adult stages. Many signalling proteins and transcription factors essential for these events are known. In all cases, myogenesis involves myoblast proliferation, migration, fusion...

...K. A. P. Edman SUMMARY The aim of the present investigation was to elucidate the elastic properties of the myofilaments during tetanic activity in striated muscle. The study was carried out on intact single muscle fibres from the anterior tibialis muscle of Rana temporaria (2.0–2.5°C...

... showed that peptide K + channel blockers from scorpion and snake have no effect on currents in muscle and nerve fibres from either scorpions or crayfish. The scorpion toxin kaliotoxin (KTX), a specific blocker of Kv1.1 and Kv1.3 K + channels, had no effect on muscle fibres of A. australis (2 μmol l −1...

... of the muscle fibres. These aspects were compared with the filter characteristics of the open-loop femur–tibia control system and of the muscle–joint system involved. Whereas in both phasmid species ( Carausius morosus and Cuniculina impigra ) the motoneuronal activity steadily increases with sinusoidal...

..., potentiated the magnitude of motoneurone B19-evoked muscle contractions (6·3 and 2·7 times, respectively) without affecting excitatory junctional potential (EJP) amplitudes. When applied to single dissociated SLT muscle fibres in cell culture, these modulators had similar effects on acetylcholine (ACh)-evoked...

... that the pincer muscle initially regenerates exclusively fast fibres as was reported for A. californiensis . 06 02 1986 © 1986 by Company of Biologists 1986 regeneration muscle fibre shrimp In general, crustaceans have impressive powers of regeneration, being able to reform entire...