| Front | Origins of pre-ganglionic ANS neurons |
|---|---|
| Back | All neurons of ANS originate within the spinal cord. Pre-ganglionic sympathetic cell bodies arise from T1 to L1/L2 spinal cord segments (between cervical and lumbar enlargements). Pre-ganglionic parasympathetic cell bodies arise from brainstem (cranial outflow above cervical enlargement) or spinal cord segments S2-S4 (sacral outflow below lumbar enlargement) |
Tags: ans
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