In which way are the sympathetic and parasympathetic divisions of the autonomic system similar? (A) Both utilize two neurons per
message.(B) In both, the preganglionic neuron is shorter than the postganglionic neuron.(C) Both use norepinephrine as their neurotransmitter.(D) Both arise from the sacral spinal nerves.(E) Both are associated with the relaxed state (rest-and-digest).
Both sympathetic and parasympathetic divisions of the autonomic nervous system have two motor neurons present in a series for a message. The first neuron is known as preganglionic neuron and the second neuron is a postganglionic neuron.
The cell body of a preganglionic neuron is embedded in the CNS and its myelinated axon run from CNS to the specific autonomic ganglion. The cell body of a postganglionic neuron is located in this autonomic ganglion only to synapse with preganglionic neuron.
By looking at the biological bases of human behavior, psychologists are better able to understand how the brain and physiological processes might influence the way people think, act, and feel.
"Then each of these strands can be used to create two new copies, and so on, and so on. The cycle of denaturing and synthesizing new DNA is repeated as many as 30 or 40 times, leading to more than one billion exact copies of the original DNA segment."
