The innervation of dorsoventrally reversed chick wings: evidence that motor axons do not actively seek out their appropriate targets.

@article{Summerbell1981TheIO,
  title={The innervation of dorsoventrally reversed chick wings: evidence that motor axons do not actively seek out their appropriate targets.},
  author={Dennis Summerbell and R. Victoria Stirling},
  journal={Journal of embryology and experimental morphology},
  year={1981},
  volume={61},
  pages={233-47}
}
In normal chick embryos the extensor (dorsal) muscles are innervated by motoneurones lying laterally in the motor horn, while flexor muscles are supplied by more medially placed motoneurones. After reversal of the dorsoventral axis of the forelimb prior to innervation in most cases the opposite pattern is found, the extensors innervated by medial and flexors by lateral motor neurones. In a minority of cases the normal innervation pattern is obtained. Three hypotheses are discussed, two… CONTINUE READING

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