Direct and indirect pathways for corticospinal control of upper limb motoneurons in the primate.

@article{Lemon2004DirectAI,
  title={Direct and indirect pathways for corticospinal control of upper limb motoneurons in the primate.},
  author={R. N. Lemon and Peter A. Kirkwood and Marc A. Maier and Katsumi Nakajima and Peter Nathan},
  journal={Progress in brain research},
  year={2004},
  volume={143},
  pages={263-79}
}
In the macaque monkey and in humans, the monosynaptic cortico-motoneuronal system is well developed. It allows the cortical motor areas to make an important direct contribution to the pattern of muscle activity during upper limb movements. There is, in addition, good anatomical evidence for descending corticospinal inputs being able to influence the premotoneuronal networks of the cervical spinal cord, and especially those operating at the segmental level of upper limb motoneurons. While… CONTINUE READING

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