作者: Timothy C Cope , Alan J Sokoloff , None
DOI: 10.1016/S0079-6123(08)62855-1
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摘要: Publisher Summary The movements and postures of limb body segments are achieved through partial activation multiple muscles. In the cat, muscles coactive during a variety movements, such as treadmill locomotion, landing, paw shake, head turning, in humans, hand grip elbow flexion. There tens to hundreds heteronymous motor units belonging different muscles, which recruited together discrete actions. This chapter discusses whether recruitment is orderly among that activated together. Recruitment order can be assessed relation motoneuron portion unit. Alpha motoneurons within nucleus (the collection supplying single muscle) progressively from slow fast axonal conduction velocity. rank-ordered by these properties commonly referred “recruitment order” size principle. describes with respect either muscle its or axons.