[The motor innervation of the axial skeletal musculature in vertebrates].
The principles of innervation and evolution of axial (body) skeletal musculature--from primitive chordata to higher mammalians--are briefly considered. The literature and original data of author are analysed, demonstrating specific pattern of neural control and peripheral motor innervation of axial musculature, differing from that in limb muscles of vertebrates. A special notice is taken in viewing the phenomenon of dual innervation of several fast axial muscles, which has been recently discovered in different groups of lower (water) and higher vertebrates. The hypotheses are considered, explaining the possible origin and significance of dual innervation, as well as the role of two different pools of motoneurons realizing the dual innervation of vertebrates fast axial muscles.
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D000818:Animals; D009046:Motor Neurons / Q000166:cytology* / Q000502:physiology; D018482:Muscle, Skeletal / Q000294:innervation* / Q000502:physiology; D013569:Synapses / Q000502:physiology / Q000648:ultrastructure; D014714:Vertebrates / Q000033:anatomy & histology* / Q000502:physiology
Dvigatel'naia innervatsiia osvoĭ skeletnoĭ muskulatury pozvonochnykh.