The parasympathetic preganglionic neuron pools are located in which region described in the material?

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Multiple Choice

The parasympathetic preganglionic neuron pools are located in which region described in the material?

Explanation:
Parasympathetic outflow is craniosacral in origin, with preganglionic neuron bodies in brainstem nuclei (the cranial nerves III, VII, IX, X) and in the sacral spinal cord (S2–S4). The region described by these preganglionic pools is the sacral region, since those S2–S4 neurons give rise to the pelvic splanchnic nerves that innervate pelvic organs and distal portions of the GI tract. The thoracolumbar region is the sympathetic preganglionic area (T1–L2), while cervical and lumbar regions are not the parasympathetic preganglionic pools described here.

Parasympathetic outflow is craniosacral in origin, with preganglionic neuron bodies in brainstem nuclei (the cranial nerves III, VII, IX, X) and in the sacral spinal cord (S2–S4). The region described by these preganglionic pools is the sacral region, since those S2–S4 neurons give rise to the pelvic splanchnic nerves that innervate pelvic organs and distal portions of the GI tract. The thoracolumbar region is the sympathetic preganglionic area (T1–L2), while cervical and lumbar regions are not the parasympathetic preganglionic pools described here.

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