spinal nerves

[kapital]

I have some question on spinal cord and its nerves:

1. Are in sympathetic trunk sympathetic ganglia?

2. Whic are neurotransimters in sensory gangia?(If any ?)

3. What exactly does it mean that some nerve has contribution from for example:C5-C8, T1?(anatomicaly)

Thax for answers.

[JackBean]

2) of course it must have neurotransmitters, how else would it pass signal?

3) that's where the nerve comes from (between which vertebra)

[kapital]

2. For example, there could be electrical synapse. Could you than please tell, which one art they(is it)?

3. Ok. From where exactly the structure is refrred as spinal nerve?

And where this contributions joint together?(C5-C8, T1)