求翻译：除最简单的反射弧由两神经元组成外，复杂的反射弧则由许多神经元组成，每个神经元还可同时接受许多兴奋性突触和抑制性突触的作用。而且这两种突触后电位的强度对比，又时刻受各种传入冲动的影响而发生变化。所以，反射活动是中枢兴奋和抑制过程互相作用的结果。如果中枢的兴奋占优势，则出现某一具体的反射；如果中枢的抑制占优势，则此反射减弱或不出现，叫做反射的抑制。是什么意思？

Apart from the simplest reflex arc composed of two neurons, the complexity of the reflex arc from many neurons in the composition of each neuron also also accept many of the role of excitatory synapses and inhibitory synapses. Both postsynaptic potentials intensity contrast, another time by a variet

In addition to the simple reflex arc consists of two neurons, composed of the complex is made up of many reflex arc neurons, each of which neurons can also accept many of the exciting and inhibiting the role. But the two after the intensity of the moment, and compare various incoming impulses of the

Besides the simple reflex arc is composed by two neurons, the complex reflex arc is composed by many neurons, each neuron also may simultaneously accept many excitability synapse and the suppressant synapse functions.Moreover after these two kind of synapses electric potential intensity contrast, al

Except for the most simple reflex ARC consists of two neurons outside the complex reflex arc is made up of many neurons, each neuron can also be accepted at many of the excitatory and inhibitory synaptic synapses. And the comparison of two kinds of strength of postsynaptic potentials, and changes un

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