carloshicks95 carloshicks95
  • 18-07-2017
  • Health
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Skeletal and smooth muscles move when nerve impulses, sent from the headCNSPNS stimulate the muscle fibers, telling them to either contract or relax.

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Vimal1
Vimal1 Vimal1
  • 19-07-2017
from the CNS (central nervous system)
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