The preganglionic parasympathetic axons branch to form the pelvic splanchnic nerves.
What is Parasympathetic division of the ANS?
- It originates from the preganglionic neurons located in brainstem nuclei and S2–S4 segments of spinal cord.
- Some of the preganglionic parasympathetic axons originate from preganglionic neuron cell bodies housed within the lateral gray matter of the S2–S4 spinal cord segments.
- These preganglionic parasympathetic axons branch to form the pelvic splanchnic (visceral) nerves, which contribute to the superior and inferior hypogastric plexus.
- The parasympathetic and sympathetic divisions of the ANS have the same basic components, but they differ in their origins, locations of the preganglionic cell bodies, axon lengths, and amount of branching.
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