Elimination of polyneuronal innervation in proximal and distal leg muscles of chick embryos.
In chick embryo leg muscles, elimination of polyneuronal innervation takes place one to 1.5 days earlier in the thigh muscle m. ambiens than in the foot muscle m. flexor hallucis brevis. Initial formation of synapses takes place 2-3 days earlier in the proximal than the distal muscle, so the length of time synapses have been active may be a factor in the control of elimination of polyneuronal innervation during development.
D000818:Animals; D002454:Cell Differentiation; D002642:Chick Embryo; D006614:Hindlimb / Q000294:innervation*; D008564:Membrane Potentials; D009132:Muscles / Q000294:innervation*; D009412:Nerve Fibers / Q000502:physiology; D009431:Neural Conduction; D009469:Neuromuscular Junction / Q000502:physiology; D009474:Neurons / Q000166:cytology; D013569:Synapses / Q000502:physiology