difference between somatic and autonomic motor neurons
F. A summary of the similarities of and differences between the somatic and autonomic nervous systems is presented. G. The output (efferent) part of the ANS is divided into two principal parts: the sympathetic and the parasympathetic.. The axon of the first (preganglionic) motor neuron of the ANS extends from the CNS and synapses in a ganglion with the second neuron. 2. The second (postganglionic) motor neuron synapses on an effector.