Question

Which of the following is true?

a) The parasympathetic nervous system is often called the fight or flight system.
b) The parasympathetic preganglionic neuron is quite short compared with the sympathetic preganglionic neuron.
c) The parasympathetic preganglionic neuron travels directly from the CNS to its target organ, where it synapses with a short postganglionic neuron.
d) The parasympathetic nervous system responses are usually spread throughout the body and involve several organs simultaneously.

Answer 1

The correct statement is b) The parasympathetic preganglionic neuron is quite short compared with the sympathetic preganglionic neuron.

Step-by-step explanation:

The correct statement is b) The parasympathetic preganglionic neuron is quite short compared with the sympathetic preganglionic neuron.

The parasympathetic nervous system is often called the rest and digest system because it is responsible for promoting relaxation and digestion in the body, opposite to the fight or flight response activated by the sympathetic nervous system.

In the autonomic nervous system, the parasympathetic preganglionic neuron travels directly from the CNS to its target organ, where it synapses with a long postganglionic neuron, compared to the sympathetic preganglionic neuron which has a short postganglionic neuron that synapses within sympathetic ganglia along the spinal cord.