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Questions and Answers
The somatic motor nervous system is a two neuron system.
False
Autonomic motor signals start in the anterior horn of the spinal cord.
False
In the autonomic nervous system, the second neuron is myelinated.
False
The neurotransmitter released by the first neuron (preganglionic neuron) in the autonomic nervous system is always inhibitory.
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The preganglionic neuron of the sympathetic nervous system always releases acetylcholine in all cases.
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The parasympathetic division of the autonomic nervous system is responsible for fight or flight responses.
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All preganglionic neurons in the sympathetic division are adrenergic.
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The splanchnic nerve contains postganglionic fibers that go directly to the adrenal medulla.
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Cholinergic neurons release norepinephrine at their axon terminals.
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All postganglionic neurons in the parasympathetic division are cholinergic.
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Nicotinic receptors on postganglionic neurons are always inhibitory.
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Sweat glands are an exception to the rule in the sympathetic division as they are innervated by adrenergic postganglionic neurons.
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