Autonomic Nervous System

Question 1

What is the structural difference between somatic and autonomic?

Answer 1

Somatic - 1 motor neuron
Autonomic - 2 motor neurons

Question 2

What neurotransmitter does the sympathetic pathways use?

Answer 2

Acetylcholine and norepinephrine

Question 3

What neurotransmitter does the parasympathetic pathways use?

Answer 3

Acetylcholine

Question 4

Where are the cell bodies of the sympathetic neurons found?

Answer 4

Lateral horn

Question 5

Where is the lateral horn present?

Answer 5

In the spinal cord between T1-L2/3 vertebrae (thoracolumbar outflow)

Question 6

If spinal cord ends at L1/2, how do we get nerves S2, S3, S4 etc?

Answer 6

Differential growth of vertebral column vs spinal cord - nerves are named according to where they emerge from the vertebral column