Final answer:
All pre-ganglionic sympathetic neurons can synapse in sympathetic chain (paravertebral) ganglia, and this synapse may occur in ganglia at the same or different segmental level of the chain.
Step-by-step explanation:
True. All pre-ganglionic sympathetic neurons can synapse in sympathetic chain (paravertebral) ganglia, and this synapse can occur in ganglia at the same or different segmental level of the chain. For example, the spinal nerve T1 innervates the eye and synapses with the postganglionic neuron in the superior cervical ganglion, which is a paravertebral ganglion located above the sympathetic chain.