Ultrastructural and physiological studies of the contraction of the trunk musculature of Sagitta setosa (chaetognath).

@article{Duvert1986UltrastructuralAP,
  title={Ultrastructural and physiological studies of the contraction of the trunk musculature of Sagitta setosa (chaetognath).},
  author={M. Duvert and J. Savineau},
  journal={Tissue \& cell},
  year={1986},
  volume={18 6},
  pages={
          937-52
        }
}
The relationships between structure and function of the contractile apparatus of the trunk musculature in the chaetognath Sagitta setosa, were studied by electron microscopy and mechanical recordings. We also investigated the nature of the neuromediator at the synaptic level. Contraction, relaxation and stretch can be explained on the sliding model basis. The primary filaments are linked to a large Z line, via C filaments. These C filaments vary in length according to the mechanical states of… Expand
Activation of locomotor and grasping spine muscle fibres in chaetognaths: a curious paradox
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