The Autonomic nervous system has a two neuron chain, the first neuron (preganglionic neuron) resides in the brain or spinal cord, the second synapses with the second neuron (blank blank) in an autonomic ganglion outside the CNS? fill in the blanks?
A. Ganglionic neuron
B. Postganglionic axon
C. Preganglionic axon
D. Preganglionic neuron
Answer: A